Find the ratio between of TSA and CSA of a cylinder given that it's height and radius are 7.5cm and 3.5cm
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Hey buddy this is your answer
Given radius = 3.5cm height = 7.5cm
Curved Surface Area of cylinder = 2πrh = 2*22/7 *3.5 *7.5 = 165 cm2
Total Surface Area of cylinder = 2πr(h+r) = 2 *22/7 * 3.5(3.5+7.5) = 242cm2
Ratio of Total Surface Area of cylinder : Ratio of Curved Surface Area of cylinder = 242 : 165 = 22 :15
Hope you understand
Given radius = 3.5cm height = 7.5cm
Curved Surface Area of cylinder = 2πrh = 2*22/7 *3.5 *7.5 = 165 cm2
Total Surface Area of cylinder = 2πr(h+r) = 2 *22/7 * 3.5(3.5+7.5) = 242cm2
Ratio of Total Surface Area of cylinder : Ratio of Curved Surface Area of cylinder = 242 : 165 = 22 :15
Hope you understand
khushman653:
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