kaylo9915
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Find the area of the regular polygon. round your answer to the nearest tenth.

A:
172.2 in.^2

B:
50.0 in.^2

C:
84.4 in.^2

D:
344.3 in.^2

Find the area of the regular polygon round your answer to the nearest tenth A 1722 in2 B 500 in2 C 844 in2 D 3443 in2 class=

Respuesta :

Area = 1/4√(5(5+2√5))a^2. a is the length of a side. If you plug in 10 as a, you get approximately 172, which is about the same as the 1st option .