19. A memorial is in the shape 2 points
of a cylinder surmounted by a
hemisphere. The maximum
height is 13 m and the
common diameter is 14 m.
Find the total surface area to
be paint
Answers
Answered by
1
Answer:
Given, Common diameter =2 m
Radius =1 m
Total length of tank =8 m
Length of cylinder =h=8−2(1)=6m
Surface area of the tank
= Surface area of two hemispheres + lateral surface area of the cylinder
=2×2πr
2
+2πrh
=2πr(2r+h)
=2×3.14×1(2×1+6)
=50.26m
2
Cost of painting =50.26×60=Rs.3015.92
∴ Cost of painting the tank is Rs. 3015.92
Step-by-step explanation:
hope it helped
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