7th grade math! Can somebody plz help answer these questions correctly (only if you remmeber how to do this) thx so much :3

WILL MARK BRAINLIEST WHOEVER ANSWERS FIRST :DD

“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 .