Question

. The dimensions of a metallic cuboid are 100 cm x 80 cm x 64 cm. It is melted and recast into a
cube. Find the edge of the cube.
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Answer 1

Answer

Volume of cube = Volume of the cuboid

${a}^{3} = 100 \times 80 \times 64 \\ {a}^{3} = 512000 \\ a = 80cm \\ surface \: area = 6 {a}^{2} = 38400 {cm}^{2}$