Question

3 copper cubes whose edge measure 5 cm 4 cm and 3 cm respectively are melted to form a single cube find the surface area of new cube

Answer 1

Volume of copper cubes = Volume of new cube

125+64+27 = Volume of new cube

216 = Volume of new cube

(Side)³ = 216

Side = 6cm

Surface area of new cube = 6a² = 6×6×6 = 216cm²

Hope it helps!!

Thank you ✌️