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# if a meteor hits the earth and forms a crater that measures 10 miles in diameter, what is the area of the crater formed?

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146
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31.4 square miles

62.8 square miles

78.5 square miles

100.4 square miles

helpppp

Oct 11, 2018
edited by Guest  Oct 11, 2018

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I guess they just want

$$A = \pi r^2 = \pi \left(\dfrac{D}{2}\right)^2 \\ D=10 \Rightarrow A = \pi(5)^2 = 25\pi \approx 78.5$$

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Oct 11, 2018