Two friends leave school at the same time, sarah is heading due north and beth is heading due east. One hour later they are 10 miles apart. If sarah traveled 8 miles from the school, how many miles had beth traveled?

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