The temperature at 6 pm was 72°. this temperature was 8° less than at 4 pm. the temperature at 10 am was 5° greater than the 4 pm temperature. what was the temperature at 10 am?

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