Question

the radius of the cross section of an inflated cycle tire 7 centimetre. The distance of the centre of the cross section from the axis is 20 cm. Find the volume of air in the tires.

Answer 1

Solution:-

Volume = Area of the cross section × Length
Area of the cross section = πr²
= 22/7*7*7
= 154 cu cm
length is the circumference of the center part = 2πr
= 2*22/7*20
Length = 880/7 cm
Now,
Volume of air in the tire = 154*880/7
= 19360 cu cm
Answer.