Question

the diameter of a wheel 5o cm , how many revolution will it make in covering 2.2 kms​

Answer 1

Answer

diameter of a wheel = 50cm
radius of wheel =50/2
=25 cm
circumference of wheel = 22/7×25×25
=1964.28cm
distance cover =2.2 km
= 1964.28/100000=
=0.196428
2.2/0.196r28
=then the answer will be 11 revolutions

Answer 2

Answer:

Step-by-step explanation:

First change cm into km

Radius of the wheel = 25cm

Circumference = 2 pie r

C = 50pie cm

C = 50pie/100000km

Revolutions be x

C × x (no. Of revolution)= 2.2km

X = 2.2 /50pie/100000

X = 220000/50pie

X = 4400/pie

X = 4400/22/7

X = 4400 ×7 /22

X = 200× 7

X = 1400 revolutions

Hope this helped