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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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