Question

How many sides does a regular polygon have if one exterior angle is 72?

Answer 1

See a solution process below:

Explanation:

The Exterior Angles of a Regular Polygon always add up to 360°:

Therefore, we can divide `360^o` by `72^o` to find the number of sides:

`360^o/72^o = 5`

The Regular Polygon with Exterior Angles of `72^o` is a Pentagon.