Question

Find area of four walls of a cube whose one edge is 5/2 m

Answer 1

Edge of a cube , a = 5/2 m
Area of four walls of a cube = Lateral Surface Area of the cube = 4a²
= 4 × (5/2)²
= 4 × 25/4
= 4 × 6.25
= 25 m²




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Answer 2

Area of one wall =25/4

therefore area of 4 walls =25/4 *4 =25