If a circle has a radius of 4 inches, how many square feet is the area of half of the circle? sri
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Hello, I think you should first convert inches into feet. Rhe area of a circle is given by the formula : $\displaystyle A=\pi R^2$ where R is the radius. Hence the area of half the circle will be $\displaystyle A'=\pi \frac{R^2}2$
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