Respuesta :

for question 11 a triangle = 90° believe so to find E i think you do 47+ 30 which 77 n take that answer and subtract it from 90 so 90-77 then the answer should =
complementary would set them equal to 180 degrees. so question 11 would be:
DEF = 103 degrees
DEG = 77 degrees
hope this helps!