Question

find the area of a circle whose circumference is 40 cm.

solve it with process

solve it correctly​

Answer 1

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$\large{\purple \leadsto \mathsf{127\dfrac{3}{11}}}$

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• Refer to the attachment.

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Answer 2

Answer:

509 1/11 Ans.

Step-by-step explanation:

Circumference of circle = 2πr

40 cm = 2 × 22/7 × r

40 × 7 / 22 = r

140/11 = r

Area of circle = πr²

= 22/7 × 140/11 × 140/11

= 5600/11 = 509 1/11 Ans.

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