a closed cylinder tank of radius 7 metre and height 8 metre is made from a sheet of metal how much sheet of metal is required
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Step-by-step explanation:
Given,
radius = 7m
height = 8m
total surface area of cylinderical tank =
2 pie r (r+h)
= 2 × 22/7 × 7 (7+8)
= 44×15
= 660 metre square
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