Question

Q.Find the area of a quadrant of a circle whose circumference is 22cm.

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Answer 1

Answer:

$Circumference = 22 \: cm \\ 2{\pi}r = 22 \: cm \\ r = \frac{22 \: cm}{2\pi} \\ r = \frac{22 \: cm \times 7}{2 \times 22} = 3.5 \: cm \\ \\ area \: of \: circle \: = \pi {r}^{2} \\ = \frac{22}{7} \times 3.5 \times 3.5 \\ = 38.5 \: {cm}^{3}$

Answer 2

Refer to the attachment

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