Find the area of a circle whose diameter is 8.4 cm. – InterviewSolution

1.

Find the area of a circle whose diameter is 8.4 cm.

Answer»

Given diameter = 8.4 cm

Therefore radius, r = d/2 = 8.4/2 = 4.2

We know that area of circle = πr²

A = (22/7) × (4.2)²

A = 55.44 cm²

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