Respuesta :

For the cube: 7x6=42
42x8 (sides of a cube+the two on the triangular prism )=336 cm
For the triangular prism: 6x4/2= 12
12x2(faces of the triangular prism)=24 cm
The last face if the triangular prism: 4x6=24 cm

Total: 24+24+336= 384cm
the anwser would be 384 centimeters