Question

radius of A wheel of a circle is 14 cm how much distance will be wheel cover if it revolves 20 times

Answer 1

distance covered= 2π×14×20cm
=1760cm

Answer 2

r = 14cm
therefore circumference = 2πr
                                       = 2 x 22/7 x 14
                                       = 88 cm
distance covered = circumference x no. of revolutions
                             = 88 x 20
                             = 1760cm

Therefore the wheel will cover 1760 cm in 20 revolutions.

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