It is required to make a closed cylindrical tank of height 1 m and base diameter 140cm from a metal sheet. How many square meters a sheet are required for the same? (a) 6.45m2 (b) 6.48m2 (c) 7.48m2 (d) 5.48m2 .
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Answer:
7.48 m^2
Step-by-step explanation:
height = 1 m, diameter = 140 cm= 1.4 m, radius = 0.7 m
TSA of cylindrical tank = required metal sheet
2 x 22/7 x 0.7 ( 1 + 0.7)
= 4.4 x 1.7 = 7.48 m^2 .
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