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Three circles of radius 10 cm each are bounded by a rubber band. Find the length of the rubber band ( in cm), if it is stretched as shown in the figure.

Three circles of radius 10 cm each are bounded by a rubber band. Find the length of the rubber band ( in cm), if it is stretched as shown in the figure. Correct Answer (60 + 20π) cm

Given:

The radius of the circle = 10 cm

Formula used:

The perimeter of circle = 2πr

Where,

r = diameter of the circle

Calculation:

Length of the rubber band

⇒ 3d + 2πr

⇒ 3 × 20 + 2π × 10

⇒ 60 + 20π cm

∴ The length of the rubber band is (60 + 20π) cm.

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