A metallic sphere of radius 4.2 cm is melted and recast into the cylinder of radius 6cm
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If a solid is recasted in any other solid the volume remains the same.
so,vol.of sphere=vol. of cylinder
•4/3πr cube= 2πr square ×h 4/3×22/7×42/10×42/10×42/10 = 2×22/7×6×6×h
h= 98.784/36
H=2.744
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