Question

Find the area of a regular decagon with a 12.3 in, apothem and 8 in. sides.

Answer 1

Answer:

C

Step-by-step explanation:

The area (A) of a regular decagon is

A = $\frac{1}{2}$ perimeter × apothem

perimeter = 10 × 8 = 80 in, thus

A = 0.5 × 80 × 12.3 = 492 in² → D