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enot [183]
3 years ago
14

What is the area of a regular pentagon with a side length of 9 millimeters and an apothem length of 6.2 millimeters?

Mathematics
1 answer:
Kazeer [188]3 years ago
5 0
A Pentagon can be broken up into 5 equal triangles. Area of the Pentagon is the sum of all the 5 triangles.

Area of the pentagon = 5 ( 1/2 x 6.2 x 9) = 139.5 mm²

Answer: 129.5 mm² (Answer D)
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