cost of colouring the pillar @ 8 per metre square whose height is 15 metre and 6 CM in diameter find the curved surface area, total surface area and volume
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height of the pillar = 15m
radius=3cm =o. 03m
CSA=2πrh=2x3.14x0.03x15
= 6.826m2. Ans
TSA = CsA+πr 2 = 6.826+3.14xo.03^2 = 6.826 +0.003=6.829. Ans
cost of colouring=6.829x=8
= Rs22.63. Ans
vol = πr 2h=3.14xo.03 ^2 x 15
= 0.04239m 3
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