Alright, we have to consider what we are finding here, in this case Angle E. We know that a straight line always measure up to be 180° and so we can subtract 180-140 to get 40° on Angle C so now that we have 45 and 40 on D and C respectively, we can add them up to get 85°. Because the sum of angle measures in a triangle is always 180° we subtract 180-85 and get the answer of 95°.
