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What is the area of a semicircle with a diameter of 20?

User Mechmind
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1 Answer

25 votes
25 votes

Answer:


\huge\boxed{\sf 157.1 \ units^2}

Explanation:

Diameter = 20

Radius = Diameter/2 = 20/2 = 10

Area of semicircle:


\displaystyle =(\pi r^2)/(2) \\\\r = 10\\\\= (\pi (10)^2)/(2) \\\\= (100 \pi)/(2) \\\\= (314.2)/(2) \\\\= 157.1 \ units^2\\\\\rule[225]{225}{2}

User Murtaza JAFARI
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