2. A right circular cylinder is closed at both ends. Find the cost of – InterviewSolution

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1.	2. A right circular cylinder is closed at both ends. Find the cost of polishing its total surface at 25paise per square om if the radius of the cylinder is 7 cm and depth is 12 cnm.
Answer» curved surfaxe area of right circular cylinder=2πrh=2×3.14×7×12=527.52cm^2cost of polishing=25×527.52=₹13,188

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