Draw rough diagram to illustrate the following Closed curve .

Short/Brief Note

Closed curve: A curve in which the beginning and the end points are the same and cuts each other.

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Can it be an interior angle of a regular polygon? Why?

What is the minimum interior angle possible for a regular polygon? Why?

Classify the following curve as open or closed:

Find the number of side of a regular polygon, when of its angle has a measure of 160° .

Which of the following is an equiangular and equilateral polygon?

Which of the following can never be the measure of exterior angle of a regular polygon?

The measure of each angle of a regular pentagon is ______.

The number of diagonals in a hexagon is ______.

A polygon is regular if all of its sides are equal.

Find the measure of each angle of a regular octagon.