Question

the circumference of a circular Garden is 66 M find its diameter

Answer 1

we know that

Circumference=2πr

66=2*22/7*r
22/7r=66/2
22r=66*7
22r=462
r=462/22

r=21

diameter=2r

diameter=2*21

diameter =42 cm ans

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Answer 2

let the radius of a circle =r
we know that the circumference of a circle =2πr
66 =2×22/7 ×r
66×7/22×1/2 =r
21/2 =r
We know that the diameter of a circle is double of radius
Now, the Diameter of a circle = 21/2×2
=21
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