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RD Sharma Solutions Class 8 Mathematics Solutions for Surface Area and Volume of Right Circular Cylinder Exercise 22.2 in Chapter 22 - Surface Area and Volume of Right Circular Cylinder
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Find the volume of a cylinder, if the diameter (d) of its base and its altitude (h) are:
(i) d = 21 cm, h = 10cm
(ii)d = 7 m, h = 24 m
Answer:
(i) Given, d = 21cm
r = d/2 = 21/2cm h = 10 cm.
By using the formula,
Volume of cylinder = πr2h
= 22/7 × 21/2 × 21/2 × 10
= 3465 cm3
(ii) Given,
d = 7 m
r = d/2 = 7/2m h = 24 m
By using the formula,
Volume of cylinder = πr2h
= 22/7 × 7/2 × 7/2 × 24
= 924 m3
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