Question

find the area of circle whose circumference is 22 cm
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Answer 1

Question :

find the area of circle whose circumference is 22 cm.

Solution :

Given :circumference = 22 cm

Circumference = 2πr

22 = 2πr

⇒r= 22/2π = 11/π ....(1)

Now

$area \: of \: Circle \: = \pi \: r {}^{2}$

put the value of r from (1)

$\implies \: area \: of \: circle \: = \pi \times( \frac{11}{\pi} ) {}^{2}$

$= \frac{11 {}^{2} }{\pi}$

$= \frac{121}{\pi} \: cm {}^{2}$

it is the required solution!

Answer 2

Answer →

$area \: of \: square \: = \: \frac{121}{\pi} {cm}^{2}$

Calculation is in the attachment.

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