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Ex 11.3, 3 - Find the side of a cube whose surface area is 600 cm2

Ex 11.3, 3 - Chapter 11 Class 8 Mensuration - Part 2

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Transcript

Ex 11.3, 3 Find the side of a cube whose surface area is 600 〖𝑐𝑚〗^2. Given, Surface area of cube = 600 〖𝑐𝑚〗^2 Let side of cube = 𝑥 cm Thus, Surface area = 6 × (Side)2 600 = 6 × 𝑥^2 600/6 = 𝑥^2 100 = 𝑥^2 𝑥^2 = 100 𝑥 = √100 𝑥 = √(〖10〗^2 ) 𝑥 = 10 𝑐𝑚 ∴ Side of cube = 10 cm

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