A closed cylindrical tank of radius 7m and height 3m is made from a sheet of metal. How much sheet of metal is required?
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Answered by
11
Given, r= 7m
h= 3m
Total sheet of metal required(Total surface area of cylinder)=πr²h
= 22/7 × 49 × 3
= 462 m²
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muskann21:
total surface area formula is wrong
Answered by
5
Answer:
Formula = 2 π r (r + h)
2 x 22/7 x 7 (7 + 3)
2 x 22 x 10
= 440 cm^2
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