Question

the circumference of a circular ground is 396 M find its diameter​

Answer 1

Circumference of circle is =

$2\pi \: r$

It is given as 396

$r =396 \div 2 \pi$

By solving it r = 63

And diameter =2r

2*63=126

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Answer 2

Hello,

Here is your answer

We have given ,

the circumference of circular ground = 396 m

we know that,

circumference of circle = 2*π*radius

396 = 2 × 22/7 ×r

396/2 = 22/7 × radius

198 = 22/7 × radius

198 × 7/22 = radius

9 × 7 = radius

63m = radius.

Also,

Diameter = 2 × radius

Diameter = 2 × 63

Diameter =126 m.

So,

The diameter of circular ground is 126 m.

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