Opposite vertices of a rectangle in the standard (x, y) coordinate plane have coordinates (6, 38) and (18, 8) respectively. What are the coordinates of the center of this rectangle? A (12, −30)
B (12, 23)
C (22, 13)
D (24, 26)
E (24, 46)

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