Finding area of a semicircle

The formula which is used to calculate the area of a semicircle in terms of radius 'r' is

Semicircle: Definition, Perimeter & Area Formulas

You find the area of a semicircle by plugging the given radius of the semicircle into the area of a semicircle formula. The area formula is: A = πr2 2 A = π r 2 2.
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How to Find the Area of a Semicircle

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