of the cylinder is 16 cm. Find its surface area.
16. A toy is in the shape of a cylinder with two equal cones stuck to each of its ends. The
length of entire solid is 20 cm and diameter of cylinder and cone is 7 cm and the end
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Height of the cylindrical part =13cm
Radius of cone , cylinder and hemi sphere=5cm
r=5cm for hemisphere cylinder and cone.
Height of cone h=30−5−13=12
The area of canvas required=Surface area of hemishphere,cylinder and cone parts of tent
A=2πr
2
+2πrH+πr(
h
2
+r
2
)
A=2π×5×5+2π×5×13+π×5(
5
2
+12
2
)
A=770cm
2
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