Find the radius of a circle, if its area is 1.54 km2. – InterviewSolution

1.

Find the radius of a circle, if its area is 1.54 km2.

Answer»

We know that area of circle = πr²

Given area = 1.54 km²

A = πr²

1.54 = πr²

r² = (1.54 × 7)/22

r² = 0.49 km

r = 0.7 km

r = 700 m

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