What is the formula for a half circle?

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asked Aug 23, 2016 49.6k views

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Anconia · Answer 1 · 2016-08-28T12:28:10+0000

A semi-circle is half of a circle and the area of a circle of radius r is r2. We know that the radius is 9ft. Pi is approximately 3.14 or 22/7. Now you just have to plug in the numbers and you will find the area! cx

What is the formula for a half circle?

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