A cube of brass whose edge is 10 centimetre is melted and recast into a rectangular Block 20 cm long 8Cm wide .find the height of new block
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when shapes are changed their volumes will be equal
volume of cubiod= volume of cube
lbh=a3
20×8×h=(10)3
160×h=1000
h=1000/160
25/4=6.25cm
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