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

    1. How many sides does the polygon have?

    2. 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 units2