Answer:
wait a minute who are you
Step-by-step explanation:
who are you
Answer:
The answer to this question is B
Step-by-step explanation:
40°
Step-by-step explanation:
∠ACB = ∠DCE ( vertically opposite angle )
Now...
a + 90° + 50° = 180° ( the sum of interior angle of triangle is 180° )
a + 140° = 180°
a = 180° - 140°
a = 40°
hence the value of a is 40°
