The altitude to be achieved by the clubs first rocketry experiment was estimated to be 214.063 meters. later, club members estimated that the rocket would reach an altitude of at least 435.09 meters. what was the average of their estimation

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