makeistyfran makeistyfran

26-11-2016
Mathematics

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A meteor crater is 4600 feet in diameter. Approximate the distance around the crater. Using 3.14.

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JcAlmighty JcAlmighty

29-11-2016

The answer is 14444 ft

The distance around the crater is actually a perimeter of a circle:
P = 2πr

We have diameter d:
d = 4600 ft
r = d/2 = 4600/2 = 2300 ft

So:
P = 2 * 3.14 * 2300
P = 14444 ft

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