Right of the bat, it is going to be exterior angle because it has a line outside of the triangle extending longer. Angle X and Y form a linear pair but we have to find X to find the exterior angle which is Y. Use the triangle sum Theorem. 60+50+ ^x= 180. Add up 60 and 50 and you get 110 and you subtract 110 from 180 and you get 70. Now a since x and y is a linear pair they both have to sum up to 180 so you subtract 70 from 180 and you will get 110 . X=70 and Y =110
