Question

In the given figure, AB || CD, angle FAE = 90°, angle AFE = 40°, find angle ECD.
40°​

Answer 1

Step-by-step explanation:

given figure, AB || CD, ∠FAE = 90°, ∠AFE = 40°, find ∠ECD. Hence, ∠ECD = 130°.

Answer 2

Answer:

30+45+a=180

a=105

30+35+b=180

b=105

a+b+c+d=360 [we know ∠c=∠ d]

2c+105+105=360

2c=150

c=75

∴∠x=∠a+∠b+∠c=105+105+75

=285