A cylindrical vessel open at the top has a base of diameter 42 cm and height 50 cm find the cost of tin plating its inner part @ rupees 12 per 100 cm square
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Mate your ans is wrong
per 100 cm sq is the que
I have corrected my ans and you have done blunder
Answered by
9
r= 21 cm , h = 50cm.
to find : curved surface area of cylinder.
Solntion: curved surface area = 2πrh
= 2* 22/7 * 21* 50
= 44/7 * 1050
= 44 * 150
= 6600 sq. cm
cost of plating per square cm = 6600/100
=66 sq.cm
Cost will be = 66 * 12
= rupees 792
Hope it hepls you mark as brainleist mate !!!
to find : curved surface area of cylinder.
Solntion: curved surface area = 2πrh
= 2* 22/7 * 21* 50
= 44/7 * 1050
= 44 * 150
= 6600 sq. cm
cost of plating per square cm = 6600/100
=66 sq.cm
Cost will be = 66 * 12
= rupees 792
Hope it hepls you mark as brainleist mate !!!
sorry but your answer is wrong because diameter is given
1st you have to change it in radius
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