Determine each soultion

-4 - -5 - -4 + -3 + -4

“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 .

Photo math will give you the step by step answer : )