Length of an edge of a cube is 4 dm. Find its volume. In each side of a cube carried out diagonal and painted on 1 triangle. Find the area of the painted surface.

Program cub; var a, b, c, d: real; begin writeln (Enter cube side length); readln(a); b:=a*a; c: =4 * (a*a); d:=a*a*a; writeln (Area of a side, b); writeln (Area of a full pov-ta, c); writeln (Volume, d); of end.
Answer add