Question

How many times a wheel of radius 28cm and must go to rotate to go 352cm

Answer 1

Answer:

2 rounds

Step-by-step explanation:

Circumference of circle = 2πr

C = 2 x 22/7 x 28

C = 2 x 22 x 4

C = 176cm in one round. (on simplifying)

So, 352cm in 352/176 round

It will take 2 round to cover a distance of 352 cm

I hope it helps

Answer 2

Answer:

So here, if the radius (R) = 28cm, the circumference (C) => 2πR = 2 x (22/7) x 28 = 176 cm.

The required distance (D) is 352 m = 352 x 100 cm [1m = 100cm].

Thus, the number of times the wheel must rotate

= Total Distance/Circumference

= D/C = 352 x 100/176 = 2 x 100 = 200.

Hope this helps ! :)