a hemispherical bowl of internal and external diameter 6 cm and 10 cm is melted and formed into a cylindrical for diameter 14 centimetre find the height of the cylinder
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heya !
internal and external radii of hemisphere be r , R
radius of cylinder be r'
R = 10/2 = 5cm
r = 6/2 = 3 cm
volume of hemisphere = volume of cylinder
2/3*π(R3-r3) = πr'2h
2/3*98 = 196h
h = 2/3 * 98/196 = 1/3cm = 0.33cm
internal and external radii of hemisphere be r , R
radius of cylinder be r'
R = 10/2 = 5cm
r = 6/2 = 3 cm
volume of hemisphere = volume of cylinder
2/3*π(R3-r3) = πr'2h
2/3*98 = 196h
h = 2/3 * 98/196 = 1/3cm = 0.33cm
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