Question

Find the area of each regular polygon. Round your answer to the nearest tenth. Show your work.

Answer 1

I'm too lazy to show your work but here are the answers:

a) approx. 120.71 in^2
b) approx. 86.603 in^2 (if 5 = INRADIUS)
    approx. 64.952 in^2 (if 5 = CIRCUMRADIUS)

Plenty of sources and calculators online

Answer 2

See picture for answers