Q3 of 62 Page 22

The area of the base of a right circular cylinder is 616 cm2 and its height is 25 cm. Find the volume of the cylinder.

Given,


Area of base = 616 cm2


Height = 25 cm


∴ volume of cylinder =


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1

Find the volume of a cylinder whose

(i) r = 3.5 cm, h = 40 cm


(ii) r = 2.8 m, h = 15 m

 2

Find the volume of a cylinder, if the diameter (d) of its base and its altitude (h) are :

(i) d = 21 cm, h = 10 cm


(ii) d = 7 m, h = 24 m

 4

The circumference of the base of a cylinder is 88 cm and its height is 15 cm. Find the volume of the cylinder.

 5

A hollow cylindrical pipe is 21 dm long. Its outré and inner diameters are 10 cm and 6 cm respectively. Find the volume of the copper used in making the pipe.