Download Geometry - Shelbyville CUSD #4

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Geometry
Lesson 11-4
Areas of Regular Polygons
Theorem 11-6:
The area of a regular polygon is equal to half the product of the
apothem and the perimeter. A = ½ ap
Find the area of each polygon.
1.) An equilateral triangle with perimeter 12.
2.) A square with perimeter 16.
3.) A hexagon with perimeter 24.
4.) An octagon with perimeter 40.
5.) A hexagon with radius 4.
6.) A pentagon with radius 10.
Homework: p. 443-444 1-20 all, omit 17
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