Wait so how do i work out the mean again

“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 .

Heidi’s has to come to a party tomorrow night at the navy house i was like going home i have ig