Example 7 - Find the height of a cylinder whose radius is 7 cm and

Example 7 - Chapter 11 Class 8 Mensuration - Part 2

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Example 7 Find the height of a cylinder whose radius is 7 cm and the total surface area is 968 ć€–š‘š‘šć€—^2. Given, Radius of Cylinder = 7 cm Total surface area = 968 cš‘š^2 Let Height of Cylinder = h Total Surface Area = 968 m2 2šœ‹š‘Ÿ(š‘Ÿ+ā„Ž) = 968 2Ɨ22/7Ɨ7Ɨ(7+ā„Ž) = 968 2Ɨ22(7+ā„Ž) = 968 44Ɨ(7+ā„Ž) = 968 7+ā„Ž = 968/44 7+ā„Ž = 484/22 7+ā„Ž = 242/11 7+ā„Ž = 22 ā„Ž = 22āˆ’7 ā„Ž = 15 cm ∓ . The height of the cylinder is 15 cm.

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