Atree is 21/2 feet tall. how tall will it be in 3 years if it grows 1/4 foot each year?

The surface area of the triangular prism is .

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

Can someone me with this? i’m not sure what to put for my equations.