(trigonometry) fill in the blank. question in the picture.

I'm not sure. Still don't see the picture.

“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 .

Dbc if u do the math and stuff that what i got let me know if i was wrong