What is the easiest way for solving the question of class 9^{th} ncert math of exercise 13.8 of math of Surface areas and Volumes chapter of question no.(1) Please help me for the best suggestion of this question Find the volume of a sphere whose radius is (i) 7 cm (ii) 0.63 m (Assume π =22/7)

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# Find the volume of a sphere whose radius is (i) 7 cm (ii) 0.63 m (Assume π =22/7) Q.1

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(i) Radius of sphere, r = 7 cm

Using, Volume of sphere = (4/3) πr

^{3}= (4/3)×(22/7)×7

^{3}= 4312/3

Hence, volume of the sphere is 4312/3 cm

^{3}(ii) Radius of sphere, r = 0.63 m

Using, volume of sphere = (4/3) πr

^{3}= (4/3)×(22/7)×0.63

^{3}= 1.0478

Hence, volume of the sphere is 1.05 m

^{3 }(approx).