### Home > INT2 > Chapter 8 > Lesson 8.4.1 > Problem 8-84

8-84.

An exterior angle of a regular polygon measures 18°. Homework Help ✎

How many sides does the polygon have?

If the length of a side of the polygon is 2 units, what is the area of the polygon?

Remember that the sum of the exterior angles is 360°.

Refer to the Math Notes box in Lesson 8.4.1, which gives a step-by-step

example illustrating how to solve this type of problem.

≈ 126.3 units^{2}