Question 1 Report
In the figure, a solid consists of a hemisphere surmounted by a right circular cone, with radius 3.0cm and height 6.0cm. Find the volume of the solid
Answer Details
The volume of the solid = vol. of cone + vol. of hemisphere
volume of cone = 12π2h 1 2 π 2 h
= 1π3×(3)2x6=18πcm2 1 π 3 × ( 3 ) 2 x 6 = 18 π c m 2
vol. of hemisphere = 4πr36=2πr33 4 π r 3 6 = 2 π r 3 3
= 2π3×(3)3=18πcm3 2 π 3 × ( 3 ) 3 = 18 π c m 3
vol. of solid = 18π π + 18π π
= 36π π cm3
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