A closed metallic cylinder has its Base diameter 56cm and it is 2.25 m high . Find the cost of the metal used to make it if ,it costs rupees 80 per square metre .
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Radius=Diameter/2=56/2cm=28cm
Height=2.25m
We have to convert radius in m
Therefore,
28/100m=0.28m
T.S.A=2πr
(r+h)=2*22/7*0.28*(0.28+2.25)=1.76*2.53m^2=4.4528m^2
Cost of metal=Rs. (4.4528*80)=Rs. 356.22
Height=2.25m
We have to convert radius in m
Therefore,
28/100m=0.28m
T.S.A=2πr
(r+h)=2*22/7*0.28*(0.28+2.25)=1.76*2.53m^2=4.4528m^2
Cost of metal=Rs. (4.4528*80)=Rs. 356.22
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