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Question

 Find the fvolume of a sphere whose radius is 
(i) 2 cm  (ii) 3.5 cm
(iii) 10.5 cm
 


Solution

 (i) Radius of sphere (r) = 2 cm
Volume=43πr3=43×227×2×2×2cm3=70421=33.52cm3
 (ii) Radius of sphere (r) =3.5cm=72cm
Volume=43πr3=43×227×72×72×72cm3=5393=179.67cm3
 (iii) Radius of sphere (r) =10.5cm=212cm
Volume=43πr3=43×227×212×212×212cm3=4851cm3
 

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