Question

Find the number of sides of a regular polygon, in which each exterior angle is 18°​

Answer 1

Answer:

20

As each exterior angle of a regular polygon is 18°. ∴ The number of sides of the polygon is 20 when each exterior angle is 18°.

Step-by-step explanation:

Given:

Each exterior angle of a polygon is 18°.

Concept used:

The sum of the exterior angles of a polygon is 360°.

Formula used:

Number of sides of polygon = 360°/each exterior angle

Calculation:

As each exterior angle of a regular polygon is 18°.

⇒ Number of sides of regular polygon = 360°/18° = 20

∴ The number of sides of the polygon is 20 when each exterior angle is 18°.