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Find the area of a circle circumscribed about an equilateral triangle whose side is 18 inches long. a. 81 b. 108 c. 243

Find the area of a circle circumscribed about an equilateral triangle whose side is 18 inches long. a. 81 b. 108 c. 243
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Find the area of a circle circumscribed about an equilateral triangle whose side is 18 inches long.

a. 81
b. 108
c. 243

asked
User Onur Gelmez
by
8.5k points

1 Answer

4 votes
See attached for work.

s=18\rightarrow r=6\sqrt3\rightarrow A_\odot=\pi(6\sqrt3)^2=\boxed{108\pi\ in^2}
Find the area of a circle circumscribed about an equilateral triangle whose side is-example-1
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User Lovubuntu
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