https://www.khanacademy.org/math/geometry/hs-geo-congruence/hs-geo-bisectors/v/geometric-constructions-perpendicular-line-through-a-point-not-on-the-line 2021-02-07T17:14:00Z Geometric constructions: perpendicular line through a point not on the line We can construct a perpendicular line through a point off the line. The lines must be perpendicular because a rhombus's diagonals are perpendicular. video https://cdn.kastatic.org/googleusercontent/mKYXjju71wAr3Vy6ys_yUJ5S2oSmi__H48LacOKR1o_m-z3slNSRZnh3wgHGwIef_hRrwBRCsCnImgupvwZPCUYOrQ Geometric constructions: perpendicular line through a point not on the line We can construct a perpendicular line through a point off the line. The lines must be perpendicular because a rhombus's diagonals are perpendicular. https://cdn.kastatic.org/ka-youtube-converted/-ltjjKgGY7o.mp4/-ltjjKgGY7o.mp4 162 Perpendicular to a line from a point outside the line