1. Find the volume of a sphere whose radius is
(i) 7cm
(ii) 0.63 m
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Answer:
Volume of sphere = 4/3 pie r cube
=4/3 ×22/7 × 7 ×7×7
=4×22×7×7 / 3
=1437.33 cubic meters
&
4/3 × 22/7 × 0.63 cube
=4×22×0.9×0.21×0.63
=10.47816
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