Page 139 - Math Course 1 (Book 2)

Geometric Area: Polygons and Circles

Skill Practice!

Find the area of each regular polygon. Round to the nearest tenth.

1. a pentagon with a perimeter of 45 feet 3. a nonagon with a side length of 8 meters

2. a hexagon with a side length of 4 inches 4. a triangle with a perimeter of 54 centimeters

Find the area of each circle. Round to the nearest tenth.

5. a circle with a radius of 6 yards 6. a circle with a diameter of 18 millimeters

Find the area of each shaded region. Assume that all polygons are regular. Round to the nearest tenth.

7. 8.

9. 10.

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