Otherwise there would be another 4 lines of symmetry passing through the opposite corners. How many line of symmetry does an octagon have. Octagon Geometry Shape Ad Affiliate Paid Shape Geometry Octagon Geometry Shape Sacred Geometry Art Geometry The trapezoid has 1 line of reflectional symmetry. . Additionally does a square have 90 degree rotational symmetry. 15 How many angles does a rectangle have. The lines of symmetry divide a figure into identical pieces. 1 Horizontal and 1 Vertical Number 1 and 2 has no symmetry. It has 4 lines of symmetry. See the Related Linkbelow that includes a diagram of an octagon with the lines ofsymmetry drawn. A regular octagon has 8 lines of symmetry. 17 How many. A regular octagon is a polygon formed by 8 equal sides. How Many Lines Of Symmetry Does An Octagon Have. 2 See answers Advertisement Advertisement thisisnotspam42 thisisnotspam42 A regular octago...