Question

the circumference of circle ground is 396 M find its diameter

Answer 1

Here is your answer.....

Circumference=2πr
396=2×22/7×r
396=44/7×r
396×7/44=r
r=63m
Therefore d=2×63=126m

Answer 2

here is your answer,
imagine that the radious of the circle is r M.
so according to the question,

2πr = 396
or, r = 396×7/44
or, r = 63 M
so, the diameter of the circle is (2×63)=126 M (Answer)
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