a steel company uses old steel and straps for making a closed cylindrical petrol storage tank of 4.2m diameter and 4.5m height. find it's curved surface area. if 1/2 of the steel was wanted then how much steel actually used in making tank.which value is dipected
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Answered by
2
Dear Friend,
r=2.1m
h=4.5m
CSA=2Πr(r+h)
=2*22/7*2.1(2.1+4.5)
=44*0.3(6.6)
=87.12m^2
value shown here is recycling waste materials to prevent wastage of such a useful thing.
hope it benefits u.
r=2.1m
h=4.5m
CSA=2Πr(r+h)
=2*22/7*2.1(2.1+4.5)
=44*0.3(6.6)
=87.12m^2
value shown here is recycling waste materials to prevent wastage of such a useful thing.
hope it benefits u.
Answered by
1
r=4.2/2
=2.1m
h=4.5m.
csa=2*pi*r*h
=2*22/7*2.1*4.5
=59.4m²
=2.1m
h=4.5m.
csa=2*pi*r*h
=2*22/7*2.1*4.5
=59.4m²
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