nfer 11C
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In regular shapes, which these all are, all sides and all angles are equal.
The more sides, the bigger the angle. That would the quickest explanation for a young child.
More thoroughly:
Equilateral triangle: 60 degrees each (180 divided by 3) A
Square : 90 degrees each (360 divided by 4) D
Pentagon : 108 degrees each (540 divided by 5) C
Hexagon : 120 degrees each (720 divided by 6) B
Heptagon : 128.5 deg. each (900 divided by 7)
Octagon : 135 degrees each (1080 divided by 8) E
As you can see, with each new side, the sum of the angles goes up by 180 degrees.
Thus you have A D C B E, so C is in the middle.
Hope this is the right question. This is the multiple choice version of that paper.
The more sides, the bigger the angle. That would the quickest explanation for a young child.
More thoroughly:
Equilateral triangle: 60 degrees each (180 divided by 3) A
Square : 90 degrees each (360 divided by 4) D
Pentagon : 108 degrees each (540 divided by 5) C
Hexagon : 120 degrees each (720 divided by 6) B
Heptagon : 128.5 deg. each (900 divided by 7)
Octagon : 135 degrees each (1080 divided by 8) E
As you can see, with each new side, the sum of the angles goes up by 180 degrees.
Thus you have A D C B E, so C is in the middle.
Hope this is the right question. This is the multiple choice version of that paper.