Answers

2014-02-06T18:47:04+08:00
57.216250 is the area. The area formula for a circle isĀ  \pi  r^{2} . First, divide the diameter by 2, to get the radius. Then multiply it by itself, since in PEMDAS, you have to do first the exponent. After that, multiply it by 3.14( \pi ) to get your area. The result is 57.216250...
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