Which of the x-values satisfy the following inequality?

X = 1 because it would equal 7 and x = 2 because it would equal 14. Both are less than 21.

“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 .