Question

Find the diameter of a wheel whose circumference is 176 cm

Answer 1

circumference of circle = 2πr
= 2 x π x r
= π x 2r
= π x diameter

π x diameter = 176
22/7 x diameter = 176
diameter = 176 x 7 / 22
diameter = 56 cm.

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Answer 2

circumference of circle=2pie r
=2*pie*r
=pie*2r
=pie*diameter

pie*diameter=176
22/7*diameter=176
diameter=176*7/22
diameter=56

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