A solid metallic sphere of radius 21 cm is melted and recast into a number of small cuboids, each of dimensions 3 cm * 4 cm * 7 cm. Find the number of cuboid so formed.
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Step-by-step explanation:
1) find the volume of given sphere
2) volume will be 38808cm cube
3) find volume of 1 Cuboid
4) volume will be84 cm cube
5) divide 38808 by 84
6) no of cubes formed ( 462)
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