A. y=-x+0.5
B. y=-x-0.5
C. y=x+0.5
D. y=x-0.5

“exterior angles of triangles. an exterior (or external) angle is the angle between one side of a triangle and the extension of an adjacent side. try this drag the orange dots on any vertex to reshape the triangle.” look to get to the answer i explained what it means and other things i hope it you .