Question

how many times a wheel of radius 28 CM must rotate to go 352 cm

Answer 1

Circumference of wheel =2 * pi *r
= 2*(22/7)*28 =176 cm
So wheel must rotate 352/176 = 2 times

Answer 2

First, we calculate the circumference

So, circumference if circle= 2pir

= 2* 22/7 * 28
= 44* 4
= 176 cm
No of times it will rotate= distance it has to cover/circumference

= 352/176
=2

Therefore,the tire will rotate 2 times in order to cover 352 cm

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