What is the area of a semicircle with a diameter of 40

asked Feb 6, 2018 131k views

5 votes

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5 votes

pi * r^2 ...diameter = 40 therefore radius is 20 ....20^2 = 400 ...400 ...pi = 3.14....400 *3.14 = 1256

Monsur answered Feb 6, 2018

8.8k points

2 votes

40 / 2 = 20
20 = radius

20 x 20 = 400 x 3.14 = 1256 / 2 = 628

628 would be your area if im not mistaken

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