Find the area of circle whose circumference is 22cm

Asked by admin @ 11/08/2021 in Math viewed by 300 People

Find the area of a circle whose circumference is 22cm

Answered by admin @ 11/08/2021

Solution :-

Given - Circumference of circle = 22 cm

Let the radius of the given circle be 'r'

Circumference of a circle = 2πr

⇒ 22 = 2 × 22/7 × r

⇒ r = (22 × 7)/(22 × 2)

⇒ r = 154/44

⇒ r = 3.5 cm

Area of circle = πr²

⇒ 22/7 × 3.5 × 3.5

⇒ 269.5/7

= 38.5 cm²

So, the area of the given circle is 38.5 cm²

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