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01-06-2017
Mathematics

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

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ashida200832 ashida200832

01-06-2017

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

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Аноним Аноним

01-06-2017

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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