A cylindricalb tin of hieght 20cm and base radius 14cm is open at the top find the cost of painting it from inside at the rate of 5 paise per sq.cm
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cost = 5 × 2πrh
= 5× 2× (22/7)×14×20. Rs/-
=8800÷100 Rs
= 88
= 5× 2× (22/7)×14×20. Rs/-
=8800÷100 Rs
= 88
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