# Example 7 - Chapter 11 Class 8 Mensuration

Last updated at Dec. 12, 2018 by Teachoo

Last updated at Dec. 12, 2018 by Teachoo

Transcript

Example 7 Find the height of a cylinder whose radius is 7 cm and the total surface area is 968 ใ๐๐ใ^2. Given, Radius of Cylinder = 7 cm Total surface area = 968 c๐^2 Let Height of Cylinder = h Total Surface Area = 968 m2 2๐๐(๐+โ) = 968 2ร22/7ร7ร(7+โ) = 968 2ร22(7+โ) = 968 44ร(7+โ) = 968 7+โ = 968/44 7+โ = 484/22 7+โ = 242/11 7+โ = 22 โ = 22โ7 โ = 15 cm โด . The height of the cylinder is 15 cm.

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