Question

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

Answer 1

$\huge{Answer \: is \: 200round}$

$\huge{Step\: by \: step\: :-}$

First find circumference.

$= 2\pi r \\ = 2 \times \frac{22}{7} \times 28 \\ = 2 \times 22 \times 4 \\ = 174 \: cm \\ = 1.74m$

Now divide distance from circumference

$= \frac{352}{1.74} \\ = 200 \: round$

$\huge{mark as brainiest answer.}$

Answer 2

Answer:

Step-by-step explanation:

352 m=352×100

=35200 cm

Perimeter of wheel=2×PAI× RADIUS

=2×22×28÷7

=176 cm^

Now,

Total time 35200÷perimeter of

Wheel must = wheel

Rotate

35200÷ 176

= 200 rotations

So, wheel must rotate 200 times to cover dist.of 352 metres.