What is the perimeter of a rectangle having side lengths of 3m and 1m?

The perimeter would be 8. The two long sides are 6, the short ones are 2. That makes 8

“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 .