Answer:
B=43 C=137 D=48
Step-by-step explanation:
b=43 because any small triangle you subtract each angle from 180 . 180-89-48= 43
c=137 because angle b and c make a supplementary angle so you subtract b from 180 to get c. 180-43= 137
d=48 because <edc is congruent to <eyx so they are the same size
