Do it with a pen n paper guys an take the pic an send it to me

By the problem and substituting the values : 36 +(-4)/8-(-4) = 32/12=8/3

“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 .