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19-01-2016
Mathematics

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Use pi=3
Calculate the area of a circle with a diameter of 10cm

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19-01-2016

Area of a circle is 75 cm².

Area of a circle is computed by multiplying pi to the square of the radius.

A = πr²

diameter = 10 cm
radius = d/2 = 10/2 = 5 cm
pi = 3

A = 3(5cm²)
A = 3(25cm²)
A = 75 cm²

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