Sum of all parts
Interior inklings
Exterior exercises
Nominal nutcrackers
100
What is the sum of the interior angles of a... triangle.
180°.
100
What is the interior angle of a regular... triangle?
60°
100
What is the exterior angle of a regular... triangle?
120°.
100
What is the name of a five-sided polygon?
A pentagon.
200
What is the sum of interior angles of a... quadrilateral.
360°.
200
What is the interior angle of a regular... quadrilateral?
90°.
200
What is the exterior angle of a regular... quadrilateral?
90°.
200
What is the name of a four-sided polygon?
A quadrilateral.
300
What is the sum of the interior angles of a... pentagon?
540°.
300
What is the interior angle of a regular... pentagon?
108°.
300
What is the exterior angle of a regular... hexagon?
60°.
300
What is the name of a nine-sided polygon?
A nonagon.
400
What is the sum of the interior angles of a... nonagon?
1260°.
400
What is the interior angle of a regular... octagon?
135°.
400
What is the exterior angle of a regular... decagon?
36°.
400
What is the name of a 13-sided polygon?
A triskaidecagon (or a 13-gon).
500
What is the sum of interior angles of an... n-sided polygon?
(n-2) × 180°.
500
What is the interior angle of a regular... n-sided polygon?
(n-2) × 180° ÷ n
500
What is the exterior angle of a regular... n-sided polygon?
180 - ((n-2) × 180° ÷ n)
500
What is the name of an n-sided polygon?
An n-gon.
M
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