Question

how many times a wheel of 28 cm diameter must rotate to go 352m ?

tell me right now urgent ​

Answer 1

Answer:

4

Step-by-step explanation:

Circumference of Circle = 2πr

= 2×22/7×14

= 88cm

Number of rotations = distance/circumference

= 352/88=4

Answer 2

The diameter of the wheel is given to be 28 cm

So, its radius will be 14 cm

First, we will find out the circumference of the wheel

Circumference = 2 πr

                         = 2 × ( 22/7) × 14

                          = 88 cm

88 cm = 0.88 m

So, in one rotation the wheel will cover a distance of 0.88 m

Rotation required to complete 352 m = 352 / 0.88

                                                              = 400

Hence, to cover a distance of 352 m the wheel will have to rotate 400 times.