Geometry book.
"In this figure, [measure of angle] 3 = x+18, [measure of angle] 4 = x+15, and [measure of angle] 5 = 4x+3."
In the diagram, there is also an "angle 1." Angle 1 = Angle 3.
e picture. I'm not sure where the "outside path" is. I have some numbers down but about this geometry problem but they are just guesses and I'd rather have someone check it.