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Sum of interior angles of a Regular Polygon

Instructions

1. Use the slider to change the number of side. 2. Observe the Sum of interior angles and measure of individual angle below slider.

Answer the following questions:

What do you mean by Interior angle?

Which formula represents how to find the interior angle sum of any polygon?

Select all that apply
  • A
  • B
  • C
  • D
Check my answer (3)

What is theĀ SUM of the angle measuresĀ in a nonagon (9 sides)?

Select all that apply
  • A
  • B
  • C
  • D
Check my answer (3)

What is theĀ SUM of the angle measuresĀ in a triangle (3 sides)?

Select all that apply
  • A
  • B
  • C
  • D
Check my answer (3)