Capacity of metallic cylindrical vessel of height 1 metre open it ok if 15.4 litres at the rate of rs 25 per 100cm squre find the cost of the metal sheet used in makind it
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1000lt = 1 meter*3
15.4 lt = 0.0154 m*3
volume of cylindrical vessel = pi . r*2h
r = 0.07 m
surface area of cylindrical vessel open at the top = curved surface area of cylinder + area of base
= 2pi . r . h + pi . r2
= pi . r ( 2h + r )
= 22/7x0.07 ( 2x1 + 0.07 )
surface area = 0.4554 m*2
4554cm*2
cost of 100 cm2 of metal sheet = Rs. 25
cost of 1 cm2 of metal sheet = Rs. 25/100
cost of 4554 cm2 of metal sheet
= Rs. 25 ×4554 / 100
= Rs. 1138.5
plzz mark as brainliest answer !!!
15.4 lt = 0.0154 m*3
volume of cylindrical vessel = pi . r*2h
r = 0.07 m
surface area of cylindrical vessel open at the top = curved surface area of cylinder + area of base
= 2pi . r . h + pi . r2
= pi . r ( 2h + r )
= 22/7x0.07 ( 2x1 + 0.07 )
surface area = 0.4554 m*2
4554cm*2
cost of 100 cm2 of metal sheet = Rs. 25
cost of 1 cm2 of metal sheet = Rs. 25/100
cost of 4554 cm2 of metal sheet
= Rs. 25 ×4554 / 100
= Rs. 1138.5
plzz mark as brainliest answer !!!
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Answer:
Rupees 1138.5
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