Question

the figure, AB || CD and F = 30°. Find ECD.​

Answer 1

Answer:

i had this same qn for test but anyway here is the answer consider triangle FAE

angle e =180-(90+30)

              =180-120

               -60

anGLE BEC=60(VERTICALLY OPOSITE ANGLE)

ANGLE ECD= 180-60(PARALLEL)

                    120

hope it helps :)                          

Step-by-step explanation:

Answer 2

Answer:

ECD=30

Step-by-step explanation:

as abis parralel to cd

on constructing FM parallel to cd

we have pair of alternate angle ECD and afe