Q9 of 59 Page 195

Measurement of each exterior angle of a regular polygon is 60°. Let’s write the number of sides of that polygon.

Given:

Measurement of each exterior angle = 60°


Sum of all exterior angles of a regular polygon of n sides = 360°


Number of sides = 360 / 60


= 6


Hence this regular polygon with measure of each exterior angle of 60° is a hexagon.


More from this chapter

All 59 →
8 E

Let’s find whether the following measurement of each interior angle is possible for a regular polygon-

155°


 8 F

Let’s find whether the following measurement of each interior angle is possible for a regular polygon-

160°


 10

Measurement of each exterior angle of a regular polygon is 135°. Let’s us write the number of sides of the polygon.

 11

The ratio of measurement of an interior angle and an exterior angle of polygon is 3:2. Let’s write the number sides of the polygon.