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15-05-2020
Mathematics

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What is the area of a circle with a diameter of nine

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15-05-2020

Answer:

A =63.585 units^2

Step-by-step explanation:

The area of a circle is given by

A = pi r^2 where r is the radius

We have a diameter of 9

r = d/2 = 9/2 = 4.5

A = (3.14) * (4.5)^2

A =63.585 units^2

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