3 years ago

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

Mathematics

1 answer:

EleoNora [17]3 years ago

8 0

Answer:

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

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