A rocket in the shape of a cone is attached to a
cylinder with the same base radius. The cone has a
slant height of 15 m. The cylinder has a base diameter
of 12 m and a height of 42 m. Find the total surface
area of the rocket.
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Total surface area = Area of base of cylinder+ Area of curved surface of cylinder+Area of curved surface of cone
A=π×r 2 + 2πrh+πrl
h=height of cylindrical part
l=slant height of conical part
r=radius of cylinder=radius of cone
A=π×2.5 2 +2π×2.5×21+π×2.5×8
A=412.334m2
Volume of tent=πr2h+ 1/3 πr2h
V=π×2.5 2 ×21+ 1/3π×2.5 2×7.6
V=462.076m 3
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