A sphere has a radius of 4.2cm is melted and casted into a cylinder of radius 6cm. find height of cylinder
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SOLUTION :
According to question ,
volume of sphere = volume of cone
Sphere :
Radius : 4.2 cm
Volume = 4/3πr³
=4/3 × 22/7 × 4.2 × 4.2 × 4.2
=310.464.....(1)
Cylinder :
Radius : 6cm
Height = h
Volume = πr²h
=22/7 × 6 × 6 × h
=792/7h
From (1)
792/7h = 310.464
h= 2.744cm
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