Question

Q7.A bicycle wheel makes 7000 revolutions to cover a distance of 22 km, find the diameter of
the wheel.​

Answer 1

Step-by-step explanation:

Let the radius of the wheel be r cm.

Distance covered by the wheel in one revolution =

5000

11

km = 220 cm

2πr=220

2×

7

22

×r=220

r=35 cm

Diameter = 2r=70 cm