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Ex 11.4, 5 - Find the height of the cylinder whose volume is 1.54 m3

Ex 11.4, 5 - Chapter 11 Class 8 Mensuration - Part 2
Ex 11.4, 5 - Chapter 11 Class 8 Mensuration - Part 3

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Ex 11.4, 5 Find the height of the cylinder whose volume is 1.54 π‘š^3and diameter of the base is 140 cm ? Given, Volume of cylinder = 1.54 π‘š^3 & Diameter = 140 cm Radius = r = 140/2 cm = 70 cm = 70/100 m = 7/10 m We need to find height of the cylinder Let h be the height of the cylinder. Now, Volume of cylinder = πœ‹π‘Ÿ^2 β„Ž 1.54 = πœ‹π‘Ÿ^2 β„Ž πœ‹π‘Ÿ^2 β„Ž = 1.54 22/7Γ—(7/10)^2Γ—β„Ž = 1.54 22/7Γ—7/10Γ—7/10Γ—β„Ž = 154/100 (22 Γ— 7)/100 β„Ž = 154/100 (154 β„Ž)/100 = 154/100 154 β„Ž = 154 β„Ž = 154/154 β„Ž = 1 ∴ Height of cylinder = 1 m

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Davneet Singh has done his B.Tech from Indian Institute of Technology, Kanpur. He has been teaching from the past 12 years. He provides courses for Maths, Science, Social Science, Physics, Chemistry, Computer Science at Teachoo.