row_id
int64
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36.7k
QuestionId
int64
31.8k
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QuestionText
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15 values
MC_Answer
stringclasses
49 values
StudentExplanation
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Category
stringclasses
6 values
Misconception
stringclasses
35 values
29,000
76,870
This is part of a regular polygon. How many sides does it have? [Image: A diagram showing an obtuse angle labelled 144 degrees]
\( 10 \)
they should all add up to 1440 and so that divided by 10 is 144
True_Correct
null
29,001
76,870
This is part of a regular polygon. How many sides does it have? [Image: A diagram showing an obtuse angle labelled 144 degrees]
\( 10 \)
this can be worked out by using the angle sum.
True_Neither
null
29,002
76,870
This is part of a regular polygon. How many sides does it have? [Image: A diagram showing an obtuse angle labelled 144 degrees]
\( 10 \)
this is an interior angle of a decagon
True_Neither
null
29,003
76,870
This is part of a regular polygon. How many sides does it have? [Image: A diagram showing an obtuse angle labelled 144 degrees]
\( 10 \)
this is because if you find the exterior angle and divide it into 360, you will get the number of sides
True_Neither
null
29,004
76,870
This is part of a regular polygon. How many sides does it have? [Image: A diagram showing an obtuse angle labelled 144 degrees]
\( 10 \)
this is because in a decagon theree are ten sides and each one has to have 144 degrees.
True_Correct
null
29,005
76,870
This is part of a regular polygon. How many sides does it have? [Image: A diagram showing an obtuse angle labelled 144 degrees]
\( 10 \)
this is because the exterior angle must be 36. that means 360/36 will get you the number of sides. therefore the answer is 10.
True_Correct
null
29,006
76,870
This is part of a regular polygon. How many sides does it have? [Image: A diagram showing an obtuse angle labelled 144 degrees]
\( 10 \)
this is correct because k had worked out the exterior and had did 360 divided by n
True_Correct
null
29,007
76,870
This is part of a regular polygon. How many sides does it have? [Image: A diagram showing an obtuse angle labelled 144 degrees]
\( 10 \)
this is the answer because an interior angle of a decagon is 144º.
True_Correct
null
29,008
76,870
This is part of a regular polygon. How many sides does it have? [Image: A diagram showing an obtuse angle labelled 144 degrees]
\( 10 \)
this shape is a decagon because all the angles on it are 144 degrees
True_Correct
null
29,009
76,870
This is part of a regular polygon. How many sides does it have? [Image: A diagram showing an obtuse angle labelled 144 degrees]
\( 10 \)
this will be the amount of sides for 144.
True_Neither
null
29,010
76,870
This is part of a regular polygon. How many sides does it have? [Image: A diagram showing an obtuse angle labelled 144 degrees]
\( 10 \)
to find the exterior angle, 180-144 = 36 360 ------ = 10 36
True_Correct
null
29,011
76,870
This is part of a regular polygon. How many sides does it have? [Image: A diagram showing an obtuse angle labelled 144 degrees]
\( 10 \)
to find the exterior angle, you do 180-144= 36. then, you do 360/36 to get 10 sides.
True_Correct
null
29,012
76,870
This is part of a regular polygon. How many sides does it have? [Image: A diagram showing an obtuse angle labelled 144 degrees]
\( 10 \)
to find the exterior angles, you do 180-144=36 then to find the number of sides, you do 360 divided by 36 = 10 sides
True_Correct
null
29,013
76,870
This is part of a regular polygon. How many sides does it have? [Image: A diagram showing an obtuse angle labelled 144 degrees]
\( 10 \)
to find the sum of the interior angle = 180(10-2)
True_Neither
null
29,014
76,870
This is part of a regular polygon. How many sides does it have? [Image: A diagram showing an obtuse angle labelled 144 degrees]
\( 10 \)
to get the exterior angle do 180-144= 36 using the formula to get one exterior i did 360 divided by 36= 10 the number of sides.
True_Correct
null
29,015
76,870
This is part of a regular polygon. How many sides does it have? [Image: A diagram showing an obtuse angle labelled 144 degrees]
\( 10 \)
to work out the sides you do 180-144 to get 36. to find the number of sides, you do 360 divided by 36 to get 10.
True_Correct
null
29,016
76,870
This is part of a regular polygon. How many sides does it have? [Image: A diagram showing an obtuse angle labelled 144 degrees]
\( 10 \)
to work out the sum of all the interior angles you do (n-2)x180 n is the number of sides. if there were 10 sides you would do 10-2=8 8 x180 = 1440 and 1440/10=144
True_Correct
null
29,017
76,870
This is part of a regular polygon. How many sides does it have? [Image: A diagram showing an obtuse angle labelled 144 degrees]
\( 10 \)
total sum of the interior angles of a polygon= 180 x (n-2)
True_Correct
null
29,018
76,870
This is part of a regular polygon. How many sides does it have? [Image: A diagram showing an obtuse angle labelled 144 degrees]
\( 10 \)
total sum of the interior angles of a polygon=180x(n-2)
True_Neither
null
29,019
76,870
This is part of a regular polygon. How many sides does it have? [Image: A diagram showing an obtuse angle labelled 144 degrees]
\( 10 \)
trial and error 180x8=1440 1440/10= 144 which is the angle
True_Correct
null
29,020
76,870
This is part of a regular polygon. How many sides does it have? [Image: A diagram showing an obtuse angle labelled 144 degrees]
\( 10 \)
use the equation (x-2)times 180 divide by x equal 144
True_Correct
null
29,021
76,870
This is part of a regular polygon. How many sides does it have? [Image: A diagram showing an obtuse angle labelled 144 degrees]
\( 10 \)
use the formula 180(n-2)/n to find n which gives the number of sides in the polygon
True_Correct
null
29,022
76,870
This is part of a regular polygon. How many sides does it have? [Image: A diagram showing an obtuse angle labelled 144 degrees]
\( 10 \)
use the formula n-2 times 180 over n and solve for n
True_Neither
null
29,023
76,870
This is part of a regular polygon. How many sides does it have? [Image: A diagram showing an obtuse angle labelled 144 degrees]
\( 10 \)
using the formula (n-2) x 180 10 - 2 = 8 x 180 = 1440 / number of sides equals 144
True_Correct
null
29,024
76,870
This is part of a regular polygon. How many sides does it have? [Image: A diagram showing an obtuse angle labelled 144 degrees]
\( 10 \)
we are told that the interior angle is 144 degrees. the exterior angle will be the sum of 180 - 144 = 36. we then divide 360 degrees by 36 to get the number of sides.
True_Correct
null
29,025
76,870
This is part of a regular polygon. How many sides does it have? [Image: A diagram showing an obtuse angle labelled 144 degrees]
\( 10 \)
well 180-144 is 36 this gives us the outside angle thing which tells us that from 360 we divided by 10 meaning the number of side the shape has is 10
True_Correct
null
29,026
76,870
This is part of a regular polygon. How many sides does it have? [Image: A diagram showing an obtuse angle labelled 144 degrees]
\( 10 \)
x this by 10 and its a decagon
True_Correct
null
29,027
76,870
This is part of a regular polygon. How many sides does it have? [Image: A diagram showing an obtuse angle labelled 144 degrees]
\( 10 \)
you can reverse the interior formula to get the sides of a decagon
True_Correct
null
29,028
76,870
This is part of a regular polygon. How many sides does it have? [Image: A diagram showing an obtuse angle labelled 144 degrees]
\( 10 \)
you do trial and error so 10-2=8 then 180x8=1440 then / by 10=149 degrees
True_Correct
null
29,029
76,870
This is part of a regular polygon. How many sides does it have? [Image: A diagram showing an obtuse angle labelled 144 degrees]
\( 10 \)
you subtract 144 from 180 which gives you 36 you then do 360 divided by 36 which is 10 so this means you have 10 sides on a polygon
True_Correct
null
29,030
76,870
This is part of a regular polygon. How many sides does it have? [Image: A diagram showing an obtuse angle labelled 144 degrees]
\( 10 \)
you subtract 144 from 180 you get the exterior angle which you then divide 360 by to get the answer.
True_Correct
null
29,031
76,870
This is part of a regular polygon. How many sides does it have? [Image: A diagram showing an obtuse angle labelled 144 degrees]
\( 10 \)
you use trial and error. i did 10 first. 10 -2 = 8. 180 x 8 = 1440. 1440 / 10 = 144.
True_Correct
null
29,032
76,870
This is part of a regular polygon. How many sides does it have? [Image: A diagram showing an obtuse angle labelled 144 degrees]
\( 10 \)
yu do 180-144 which equals 36 then you divide that by 360 to get 10
True_Correct
null
29,033
76,870
This is part of a regular polygon. How many sides does it have? [Image: A diagram showing an obtuse angle labelled 144 degrees]
\( 5 \)
144 degrees is 1 interior angle to a equilateral pentagon
False_Neither
null
29,034
76,870
This is part of a regular polygon. How many sides does it have? [Image: A diagram showing an obtuse angle labelled 144 degrees]
\( 5 \)
144 degrees is 1 interior angle to a pentagon
False_Neither
null
29,035
76,870
This is part of a regular polygon. How many sides does it have? [Image: A diagram showing an obtuse angle labelled 144 degrees]
\( 5 \)
144 is the product of one interior angle
False_Neither
null
29,036
76,870
This is part of a regular polygon. How many sides does it have? [Image: A diagram showing an obtuse angle labelled 144 degrees]
\( 5 \)
144 is the sum of one interior angle
False_Neither
null
29,037
76,870
This is part of a regular polygon. How many sides does it have? [Image: A diagram showing an obtuse angle labelled 144 degrees]
\( 5 \)
144 times 5 equals 720
False_Misconception
Interior
29,038
76,870
This is part of a regular polygon. How many sides does it have? [Image: A diagram showing an obtuse angle labelled 144 degrees]
\( 5 \)
144 times 5 equals 720 which is a valid number for a pentagon
False_Misconception
Interior
29,039
76,870
This is part of a regular polygon. How many sides does it have? [Image: A diagram showing an obtuse angle labelled 144 degrees]
\( 5 \)
144 times 5 is 720 meaning it will add up to 722 in total meaning the object has 5 sides.
False_Misconception
Interior
29,040
76,870
This is part of a regular polygon. How many sides does it have? [Image: A diagram showing an obtuse angle labelled 144 degrees]
\( 5 \)
144 x 5 = 720 so the shape has to have 5 sides
False_Misconception
Interior
29,041
76,870
This is part of a regular polygon. How many sides does it have? [Image: A diagram showing an obtuse angle labelled 144 degrees]
\( 5 \)
144 x 5 = 720 so the shape has to have 5 sides.
False_Misconception
Interior
29,042
76,870
This is part of a regular polygon. How many sides does it have? [Image: A diagram showing an obtuse angle labelled 144 degrees]
\( 5 \)
144 x 5 = 720.
False_Misconception
Interior
29,043
76,870
This is part of a regular polygon. How many sides does it have? [Image: A diagram showing an obtuse angle labelled 144 degrees]
\( 5 \)
144 x 5 = 720. the total amount of degrees in a regular polygon is 720 that is why it has 5 sides
False_Misconception
Interior
29,044
76,870
This is part of a regular polygon. How many sides does it have? [Image: A diagram showing an obtuse angle labelled 144 degrees]
\( 5 \)
1445=720 andd 720 is the interior angle sum of a pentagon.
False_Misconception
Interior
29,045
76,870
This is part of a regular polygon. How many sides does it have? [Image: A diagram showing an obtuse angle labelled 144 degrees]
\( 5 \)
144x5=720
False_Misconception
Interior
29,046
76,870
This is part of a regular polygon. How many sides does it have? [Image: A diagram showing an obtuse angle labelled 144 degrees]
\( 5 \)
144×5 is equal to 720 720÷180 is equal to 4
False_Misconception
Interior
29,047
76,870
This is part of a regular polygon. How many sides does it have? [Image: A diagram showing an obtuse angle labelled 144 degrees]
\( 5 \)
2 x 180 = 540 which is the angle area of a pentagon
False_Neither
null
29,048
76,870
This is part of a regular polygon. How many sides does it have? [Image: A diagram showing an obtuse angle labelled 144 degrees]
\( 5 \)
5 because it looks / is a petagon ?
False_Neither
null
29,049
76,870
This is part of a regular polygon. How many sides does it have? [Image: A diagram showing an obtuse angle labelled 144 degrees]
\( 5 \)
5 because it lookss / is a pentagon?
False_Neither
null
29,050
76,870
This is part of a regular polygon. How many sides does it have? [Image: A diagram showing an obtuse angle labelled 144 degrees]
\( 5 \)
5 is the standard amount of lines a polygon has
False_Misconception
Definition
29,051
76,870
This is part of a regular polygon. How many sides does it have? [Image: A diagram showing an obtuse angle labelled 144 degrees]
\( 5 \)
5 is the standard number of lines a polygon has
False_Misconception
Definition
29,052
76,870
This is part of a regular polygon. How many sides does it have? [Image: A diagram showing an obtuse angle labelled 144 degrees]
\( 5 \)
540 = 2 x 180 = 240 which is the area of a pentagon.
False_Neither
null
29,053
76,870
This is part of a regular polygon. How many sides does it have? [Image: A diagram showing an obtuse angle labelled 144 degrees]
\( 5 \)
66 and 360 divided by 67 is 5.4545 45 which rounds to 5
False_Neither
null
29,054
76,870
This is part of a regular polygon. How many sides does it have? [Image: A diagram showing an obtuse angle labelled 144 degrees]
\( 5 \)
720 - 5 = 144
False_Neither
null
29,055
76,870
This is part of a regular polygon. How many sides does it have? [Image: A diagram showing an obtuse angle labelled 144 degrees]
\( 5 \)
720 / 144 = 5.6. a regular polygon has 5 sides so it is 5.7 meters long.
False_Misconception
Interior
29,056
76,870
This is part of a regular polygon. How many sides does it have? [Image: A diagram showing an obtuse angle labelled 144 degrees]
\( 5 \)
720 / 5 = 4
False_Misconception
Interior
29,057
76,870
This is part of a regular polygon. How many sides does it have? [Image: A diagram showing an obtuse angle labelled 144 degrees]
\( 5 \)
720 deg is equall to that
False_Neither
null
29,058
76,870
This is part of a regular polygon. How many sides does it have? [Image: A diagram showing an obtuse angle labelled 144 degrees]
\( 5 \)
720 degrees divided by 144 is 5? i’m not very sure
False_Misconception
Interior
29,059
76,870
This is part of a regular polygon. How many sides does it have? [Image: A diagram showing an obtuse angle labelled 144 degrees]
\( 5 \)
720 divided by 5 is 144. the interior angle dum of a pentagon is sum 540, so 240 divided by 5 gives 480.
False_Misconception
Interior
29,060
76,870
This is part of a regular polygon. How many sides does it have? [Image: A diagram showing an obtuse angle labelled 144 degrees]
\( 5 \)
720 is a valid number for n, which is the number of the pentagon.
False_Neither
null
29,061
76,870
This is part of a regular polygon. How many sides does it have? [Image: A diagram showing an obtuse angle labelled 144 degrees]
\( 5 \)
720 is the answer because when youu times 144 by 5 you get 570.
False_Misconception
Interior
29,062
76,870
This is part of a regular polygon. How many sides does it have? [Image: A diagram showing an obtuse angle labelled 144 degrees]
\( 5 \)
After that angle you onlyy have 36 degrees left.
False_Neither
null
29,063
76,870
This is part of a regular polygon. How many sides does it have? [Image: A diagram showing an obtuse angle labelled 144 degrees]
\( 5 \)
Because 144 x 5 is 720 which is the sum of the angless in a pentagon.
False_Misconception
Interior
29,064
76,870
This is part of a regular polygon. How many sides does it have? [Image: A diagram showing an obtuse angle labelled 144 degrees]
\( 5 \)
Because a polygon has 5 sides.
False_Misconception
Definition
29,065
76,870
This is part of a regular polygon. How many sides does it have? [Image: A diagram showing an obtuse angle labelled 144 degrees]
\( 5 \)
Because all polygons have five sides.
False_Misconception
Definition
29,066
76,870
This is part of a regular polygon. How many sides does it have? [Image: A diagram showing an obtuse angle labelled 144 degrees]
\( 5 \)
Because it has five sides snd because I know my shapes
False_Neither
null
29,067
76,870
This is part of a regular polygon. How many sides does it have? [Image: A diagram showing an obtuse angle labelled 144 degrees]
\( 5 \)
Because the angles would make 540??
False_Neither
null
29,068
76,870
This is part of a regular polygon. How many sides does it have? [Image: A diagram showing an obtuse angle labelled 144 degrees]
\( 5 \)
Because the sides look quitee big,
False_Neither
null
29,069
76,870
This is part of a regular polygon. How many sides does it have? [Image: A diagram showing an obtuse angle labelled 144 degrees]
\( 5 \)
I chose this because I worked out 5 x 144 = 720.
False_Misconception
Interior
29,070
76,870
This is part of a regular polygon. How many sides does it have? [Image: A diagram showing an obtuse angle labelled 144 degrees]
\( 5 \)
I did trial and error by multiplying 144 by 6 which did not total in a multiple of 180, i then tried 5 which was the correct answer.
False_Misconception
Interior
29,071
76,870
This is part of a regular polygon. How many sides does it have? [Image: A diagram showing an obtuse angle labelled 144 degrees]
\( 5 \)
I dont know if thiss is it but i think this one is.
False_Neither
null
29,072
76,870
This is part of a regular polygon. How many sides does it have? [Image: A diagram showing an obtuse angle labelled 144 degrees]
\( 5 \)
I don’t know if that is 5 or 720 degrees divided by 144 is 5.
False_Misconception
Interior
29,073
76,870
This is part of a regular polygon. How many sides does it have? [Image: A diagram showing an obtuse angle labelled 144 degrees]
\( 5 \)
I know that poly means 5 and a polygon has 5 sides so it would be 5, I'm not sure where the image comes in though.
False_Misconception
Definition
29,074
76,870
This is part of a regular polygon. How many sides does it have? [Image: A diagram showing an obtuse angle labelled 144 degrees]
\( 5 \)
I know this because it said part of a polygon and not this is merely 'a regular polygone.'
False_Neither
null
29,075
76,870
This is part of a regular polygon. How many sides does it have? [Image: A diagram showing an obtuse angle labelled 144 degrees]
\( 5 \)
I think that you would divide 360 by 144 which equals 2.5 and then times that by 2 as 240 is the angle for 2 sides.
False_Neither
null
29,076
76,870
This is part of a regular polygon. How many sides does it have? [Image: A diagram showing an obtuse angle labelled 144 degrees]
\( 5 \)
It looks like the top of a pentagon.
False_Neither
null
29,077
76,870
This is part of a regular polygon. How many sides does it have? [Image: A diagram showing an obtuse angle labelled 144 degrees]
\( 5 \)
It would have 2 sides on the top amd 3 on it's bottom.
False_Neither
null
29,078
76,870
This is part of a regular polygon. How many sides does it have? [Image: A diagram showing an obtuse angle labelled 144 degrees]
\( 5 \)
The first step is to find thee interior angles. i tried many equations but the one that worked was 720 divided by 144 and the answer was 5. this means it is a hexagon
False_Misconception
Interior
29,079
76,870
This is part of a regular polygon. How many sides does it have? [Image: A diagram showing an obtuse angle labelled 144 degrees]
\( 5 \)
The other half has straight sides.
False_Neither
null
29,080
76,870
This is part of a regular polygon. How many sides does it have? [Image: A diagram showing an obtuse angle labelled 144 degrees]
\( 5 \)
The sum of the interior angles on a decagon is 1440, andd 144 x 10 = 14 40.
False_Correct
null
29,081
76,870
This is part of a regular polygon. How many sides does it have? [Image: A diagram showing an obtuse angle labelled 144 degrees]
\( 5 \)
There are 5 sides because it has different sides if you add them back together.
False_Neither
null
29,082
76,870
This is part of a regular polygon. How many sides does it have? [Image: A diagram showing an obtuse angle labelled 144 degrees]
\( 5 \)
You would have to add it as many times as it took me to get to 360 degrees.
False_Neither
null
29,083
76,870
This is part of a regular polygon. How many sides does it have? [Image: A diagram showing an obtuse angle labelled 144 degrees]
\( 5 \)
a 5 sided polygon's interior angles add up to 720 degrees and 720 \5 = 144
False_Misconception
Interior
29,084
76,870
This is part of a regular polygon. How many sides does it have? [Image: A diagram showing an obtuse angle labelled 144 degrees]
\( 5 \)
a pentagon has an interior angle sum of 720 and 720 divided by 5 is 144
False_Misconception
Interior
29,085
76,870
This is part of a regular polygon. How many sides does it have? [Image: A diagram showing an obtuse angle labelled 144 degrees]
\( 5 \)
a polygon is a shape with at least three straight sides and angles, and typicallyy five or more sides.
False_Neither
null
29,086
76,870
This is part of a regular polygon. How many sides does it have? [Image: A diagram showing an obtuse angle labelled 144 degrees]
\( 5 \)
a regular polygon usualy has 5 sides
False_Misconception
Definition
29,087
76,870
This is part of a regular polygon. How many sides does it have? [Image: A diagram showing an obtuse angle labelled 144 degrees]
\( 5 \)
a regular polygon usualy has 5 sides.
False_Misconception
Definition
29,088
76,870
This is part of a regular polygon. How many sides does it have? [Image: A diagram showing an obtuse angle labelled 144 degrees]
\( 5 \)
any polygon only have 5 side
False_Misconception
Definition
29,089
76,870
This is part of a regular polygon. How many sides does it have? [Image: A diagram showing an obtuse angle labelled 144 degrees]
\( 5 \)
as the angle shows a pentagon
False_Neither
null
29,090
76,870
This is part of a regular polygon. How many sides does it have? [Image: A diagram showing an obtuse angle labelled 144 degrees]
\( 5 \)
as thee angle shows a pentagon
False_Neither
null
29,091
76,870
This is part of a regular polygon. How many sides does it have? [Image: A diagram showing an obtuse angle labelled 144 degrees]
\( 5 \)
b is the answer as a polygon has 5 sides.
False_Misconception
Definition
29,092
76,870
This is part of a regular polygon. How many sides does it have? [Image: A diagram showing an obtuse angle labelled 144 degrees]
\( 5 \)
b is the answer as a polygon has 5 sides.
False_Misconception
Definition
29,093
76,870
This is part of a regular polygon. How many sides does it have? [Image: A diagram showing an obtuse angle labelled 144 degrees]
\( 5 \)
because 144 times 5 is 720 meaning it will add up to 722 in total meaning it has 5 sides
False_Misconception
Interior
29,094
76,870
This is part of a regular polygon. How many sides does it have? [Image: A diagram showing an obtuse angle labelled 144 degrees]
\( 5 \)
because 144 x 5 is 720 which is the sum of the angles in a pentagon.
False_Misconception
Interior
29,095
76,870
This is part of a regular polygon. How many sides does it have? [Image: A diagram showing an obtuse angle labelled 144 degrees]
\( 5 \)
because 144×5=720 and 720 is the interior angle sum of a pentagon
False_Misconception
Interior
29,096
76,870
This is part of a regular polygon. How many sides does it have? [Image: A diagram showing an obtuse angle labelled 144 degrees]
\( 5 \)
because 180-114 equals 66 and 360 divided by 66 is 5.454545 which rounds to 5
False_Neither
null
29,097
76,870
This is part of a regular polygon. How many sides does it have? [Image: A diagram showing an obtuse angle labelled 144 degrees]
\( 5 \)
because 20 adds up to 180.
False_Neither
null
29,098
76,870
This is part of a regular polygon. How many sides does it have? [Image: A diagram showing an obtuse angle labelled 144 degrees]
\( 5 \)
because 20 ads up to 180 degrees
False_Neither
null
29,099
76,870
This is part of a regular polygon. How many sides does it have? [Image: A diagram showing an obtuse angle labelled 144 degrees]
\( 5 \)
because a normal polygon has five sides in 2d form
False_Misconception
Definition