the side of the metallic cube is 12 cm.it is melted and formed into a cuboid whose length and breadth are 18 cm and 16 cm respectively. find the height of the cuboid.
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Answer:
Radian =27=3.5 cm
height of cylinder =16−3.5=12.5 cm
No. of cylinder =πr2h=722×(3.5)2×12.5=481.25 cm3
Hemisphere volume =32×r3=32×722×(3.5)2 cm3
Total capacity =481.25+89.79=571.04 cm3
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