for the first question que localize point b and d which are in 20° and 110° respectively.
Inthis case we do the difference to find the real value
angle BAD = 110°- 20°= 90°
same procedure goes for angle DAE.
D is at 110° and E is at 135°
angle DAE= 135°- 110°= 25°
To find the sum is just adding them together
90°+25°= 115°
