Question

three metal cubeswhose edges measures 3cm,4cm and 5cm respectively are melted to form a single cube. find its edge and the surface area.​

Answer 1

Step-by-step explanation:

${3}^{3} + {4}^{3} + {5}^{3} = {edge}^{3} \\ 27 + 64 + 125 = {edge}^{3} \\ edge = \sqrt[3]{216 } \\ edge = 6$