Question

find the area of a circle whose circumference is 220 m

Answer 1

as we know that circumference of a circle =2 pi r...
then 2pi r=220 m
2 ×22/7 r = 220
r = 35 m
therefore area of circle =pi r^2
= 22/7 × 35 ×35 = 3850 m^2

Answer 2

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Nice Question! ♥

Here is your answer...

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For a circle,

Circumference = 2πr
Area = πr²

where r is radius of the circle & pi (π) = 22/7.

Given, Circumference = 220m

⇒ 220 = 2πr
i.e, r = 220/2(22/7) = 5 x 7 = 35m [by cancelling 220 with with 44]

Now, Area = πr² = (22 x 35 x 35)/7 = 3850 m²


Therefore, 3850m² is the area of the circle.

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