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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 = 10 cm

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

1 Answer

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Best answer

(i) Given,

D = 21 cm

r = \(\frac{d}{2}\) = \(\frac{21}{2}\) cm

h = 10 cm

Volume of cylinder = πr2h = \(\frac{22}{7}\)\(\frac{21}{2}\)\(\frac{21}{2}\)x 10 = 3645 cm3

(ii) Given,

d = 7 m

r = \(\frac{7}{2}\) m

h = 24 m

Volume of cylinder = πr2h = \(\frac{22}{7}\)\(\frac{7}{2}\)\(\frac{7}{2}\)x 24 = 924 m3

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