What is the length of line segment xz? 4 units 8 units 16 units 20 units

It is 16 units. I hope this helps

“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 .