Add 3 to h, then subtract 9 from the result

1.3 and 1 1/3 are both closest to 1. hope this ; )

“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 .