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allochka39001 [22]
3 years ago
5

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:

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

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