Question

# The circumference of a circle exceeds the diameter by 16.8 cm. Find the circumference of the circle.

Solution

## Let the radius of a circle be r cm. As per the question, 2πr=2r+16.8 ⇒2×227×r=2r+16.8 ⇒44r=14r+117.6 ⇒30r=117.6 ⇒r=3.92 cm Now the circumference is 2πr=2×227×3.92=24.64 cm MathematicsRD SharmaStandard X

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