Geometry 1.13: Polygons and Symmetry 2

How many lines of symmetry does a regular decagon have? : 10

Which line is a line of symmetry in this rectangle?Rectangle with a horizontal, dotted line labeled n that bisects it in the middle. A second dotted line, labeled o, bisects the rectangle diagonally, from one corner to the other. A third dotted line, labeled p, runs vertically along the right-hand edge of the rectangle. : line n