A cube with a side length of 4 om is placed on top of a right rectangular prism to form a solid. The entire bottom face of the cube is touching the prism. The prison has a ength of 15 cm, a width of 9 cm, and a height of 8 cm Whats the surface area of the solid ​

The figure shows triangle def and line segment bc, which is parallel to ef: triangle def has a point b on side de and point c on side df. the line bc is parallel to the line ef. part a: is triangle def similar to triangle dbc? explain using what you know about triangle similarity. part b: which line segment on triangle dbc corresponds to line segment ef? explain your answer. part c: which angle on triangle dbc corresponds to angle f? explain your answer. asap