Step-by-step explanation:
since it is a straight line .
angle 4+ angle 5 = 180
40+ angle 5 = 180
angle 5 = 140
Answer:
A. 140
well, one way to look at it is that ∠4 + ∠5 = 180
we are GIVEN the info that ∠4 = 40
therefore 180 - 40 - ∠5
180 - 40 = 140
