a closed metallic cylinder has its base diameter 56 cm 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=$(4.4528*80)=$356.22
Hope it help u if yes then plz mark it as brainliest
Height=2.25m
We have to convert radius in m
Therefore, 28/100m=0.28m
T.S.A=2πr (r+h)=2*22/7*0.28*(0.28+2.25)=1.76*2.53m^2=4.4528m^2
Cost of metal=$(4.4528*80)=$356.22
Hope it help u if yes then plz mark it as brainliest
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