Question

The circumfarance of circular ground is 360 find the diameter

Answer 1

circumference=2πr

360 = 2 π r

180 = 22/7 r

180 × 7 = 22 r

1160/22 = r

r = 52.77

Answer 2

Circumference = 2πr

360 = 2πr

360 x 7 / 22 x 2 = r

180 x 7/22 = r

90 x 7/11 = r

630 /11 = r

∴ r = 57.27

So radius of ground is 57.27

Now,

Diameter = 2 x radius

Diameter = 2 x 57.27

Diameter = 114.54

So, the diameter of ground is 114.54

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