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Question

If the circumference of the circular sheet is 154 cm, find its radius. Also find the area of the sheet. (Take π=227)

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Solution

Given: Circumference =154 cm

We know that the Circumference of a circle is given by 2πr

2πr=154 cm

r=1542×227


r=154×72×22


r=492=24.5 cm


Area of the circle =πr2=227×24.5×24.5=1886.50 cm2

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