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Keith_Richards [23]
3 years ago
10

What is the area of the regular octagon with a side length of 10 m and an apothem of 12.1 m?

Mathematics
1 answer:
zhuklara [117]3 years ago
3 0
A = 2 * a^2 * (1 + sqrt 2)

Where 'a' is the side length.

A = 2 * 10^2 * (1 + sqrt 2)

A = 2 * 10^2 * 2.41421356

A = 2 * 100 * 2.41421356

A = 200 * 2.41421356

A = 482.842712

Therefore, the closest one is C.
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