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curved surface area of area of the cylinder is 220 cm² and the height is 10 c.m , what is its volume ? |
Answer» GIVEN :-CSA = 220 cm² Height = 10 cm To Find :-Volume Solution :-We know that CSA = 2πrh 220 = 44/7 × 10 × r 220 = 440/7r 220 × 7/440 = r 1 × 7/2 = r 3.5 = r Now, Volume = πr²h Volume = 22/7 × (3.5)² × 10 Volume = 22/7 × 1225/100 × 10 Volume = 22/7 × 1225/10 Volume = 26950/70 Volume = 2695/7 Volume = 385 cm³ |
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