3.3: Angles of Polygons. What is a Polygon? A polygon is a closed plane figure made up of three or more line segments that intersect only at their.
120 ⁰ 15x+5 ⁰ 22x+4 ⁰. “If two lines are parallel and a transversal is perpendicular to one line, then it is perpendicular to the other. Reason: Corresponding.
CK-12 Flexbooks on Polygon
