Technician a says that diesel fuel contains 12% more heat energy than the same amount of gasoline. technician b says that temperatures in the combustion chamber range from about 1,200 to 1,600 degrees fahrenheit at the time of diesel fuel injection. who is correct? technician a only technician b only both technicians a and b neither technician a nor b

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