A closed cylindrical tank of diameter 14m and height 5cm is made from a sheet of metal.how much sheets of metal will be required?
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TSA of cylinder=2πr(h+r)
here, Diameter=14m
so, Radius=d/2
=14/2
=7m
height=5cm
convert cm into m,
5cm=5/100m
=0.05m
value of π=22/7
Now,by the formula 2πr(h+r)
TSA=2×22/7×7 (7+0.05)
=44(7.05)
=44×7.05
=310.20meters
here, Diameter=14m
so, Radius=d/2
=14/2
=7m
height=5cm
convert cm into m,
5cm=5/100m
=0.05m
value of π=22/7
Now,by the formula 2πr(h+r)
TSA=2×22/7×7 (7+0.05)
=44(7.05)
=44×7.05
=310.20meters
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