Question

11)The circumference of a circular sheet is 132cm.Find its area.(Take π=22/7)

Answer 1

Answer:

Step-by-step explanation:

Circumference = 2πr

132 = 2πr

Dividing 2 on both sides we get,

132/2 = 2πr/2

66 = πr

Divide π on both sides we get,

66/π = πr/π

Put the given value of π.

66/22/7 = r

r = 3 x 7 = 21

Now area of circle = π x r x r

So we get,

22/7 x 21 x 21

= 22 x 3 x 21

= 66 x 21

= 1386 cm²

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