Question

4.) The lengthy breadth and the height of a rectangular

metallic black are 18 cm, 4cm and 24cm
respectively. It is melted and reformed
into a cube. Find the surface area of the
cube

Answer 1

Answer: T. S. A of cube is 864cm² Step-by-step explanation: length of cuboid= 18cm breadth of cuboid=4cm height of cuboid=24cm A. T. Q. Vol cuboid= Vol Cube L*B*H = a³ [let side of cube because] 18*4*24 = a³ 1728 = a³ 12 cm =a³ Now, T. S. A of cube =6*a² =6*12*12 =864cm