3 years ago

What is the area of a regular pentagon with 7 inch sides and an apothem of 3.9 inches?

Mathematics

1 answer:

Marrrta [24]3 years ago

8 0

A(n)=(ns^2)/(4tan(180/n)) in this case:

a=(5*49)/(4tan36)

a=84.3in^2

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