A wooden article was made by scooping out a hemisphere from one end of a cylinder and a cone from other end as shown in the figure lf the height of cylinder is 40cm radius 7 CM and height of a cone is 24cm find the volume of the wooden article??
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Given:
Height of Cylinder =h =10 cm
Radius of Cylinder = Radius of Hemispheres =r =3.5 cm
Surface area of article = CSA of cylindrical part + 2 x CSA of hemispherical part
=2πrh+2×2πr
2
=2π×3.5×10+2×2π×3.5
2
=70π+49π
=119π=119×
7
22
=17×22
=374 cm
2
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