Asked by Anonymous

The diameter of a semicircle is 4 millimeters. What is the semicircles area

Answers

Answered by Kenny
Diameter of a circle =2r

That of a semicircle ½d=r=2millimeters

Area of a circle =πr²

That of a semicircle=½πr²

Just plug in r
Answered by Anonymous
The diameter of a semicircle is 4 millimeters. What is the semicircle's perimeter?
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