an open cylindrical oil tank has diameter 14m and height 9m if the inner side of the tank has to be painted all over what will it cost at rupees 40 per square metre
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r=7
h=9
A=2prh+2pr^2
2pr(h+r)
2×22/7×16×7
704
cost=704×40
28160rupees
h=9
A=2prh+2pr^2
2pr(h+r)
2×22/7×16×7
704
cost=704×40
28160rupees
bhatnagarmamta098:
hvag
this is not correct answer
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