Polygon has a perimeter of 42 and its a scaled copy of polygon A. if polygon A has a perimeter of 14 what is the the scale factor of B to A​

“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 .