Question

The radius of a wheel of a bus is 0.70 m. How many revolutions will it make in covering
22 km?
circle with radius 42 cm. It is bent into a square. Find the sides​

Answer 1

Answer:

circumference of wheel= 2πr

                                     = (2 x 0.7)π

                                     = 4.4m

no.of revolutions = distance travelled / circumference of wheel

                           = 22000/4.4

                           = 5000 revolutions

Step-by-step explanation:

hope this helps please follow

Answer 2

Here is ur ans :-

1. Radius = 0.70 m

In one revolution, the wheel will roll once around its circumference, so one revolution equates to a distance of :

Circumference = 2 π r

Distance/Circumference = 2 π r

Distance = 2 × 22/7 × 0.7

Distance = 44/7 × 0.7

Distance = 44/10 m

Distance = 4.4 m

Therefore:

22 km = 22000 m

No. of Revolutions made Total Distance / Distance covered in 1 revolution

No. of revolutions = 22000 / 4.4

No. of revolutions = 5000

2. The radius of the circle being 42 cm,

its circumference is 2πr = 2×22×42/7

= 264 cm.

The wire in the form of a circle is bent into a square, and so each side = 264/4

= 66 cm.

hope it helps u✨

keep smiling ❣️