bken6271 bken6271

21-01-2020
Mathematics

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What is the area of a circle with a diameter of 13.2cm

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sofia200605 sofia200605

21-01-2020

So the area of a circle is pi * the radius squared. The diameter is double the radius. Divide 13.2 by 2 to get the radius = 6.6 . Then square it = 43.56. Then multiply this by pi and you should get the answer = 136.85 cm squared

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