Ex 9.2, 3 - Find the side of a cube whose surface area is 600 cm2 - Ex 9.2

part 2 - Ex 9.2, 3 - Ex 9.2 - Serial order wise - Chapter 9 Class 8 Mensuration

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Transcript

Ex 9.2, 3 Find the side of a cube whose surface area is 600 ใ€–๐‘๐‘šใ€—^2.Given, Surface area of cube = 600 ใ€–๐‘๐‘šใ€—^2 Let Side of cube = ๐’™ cm Thus, Surface area = 6 ร— (Side)2 600 = 6 ร— ๐’™^๐Ÿ 600/6 = ๐‘ฅ^2 100 = ๐‘ฅ^2 ๐‘ฅ^2 = 100 ๐‘ฅ = โˆš100 ๐‘ฅ = โˆš(10^2 ) ๐’™ = ๐Ÿ๐ŸŽ ๐’„๐’Ž โˆด Side of cube = 10 cm

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