https://www.khanacademy.org/math/geometry/hs-geo-congruence/hs-geo-bisectors/v/constructing-parallel-lines 2022-09-10T02:03:40.164764806Z Geometric constructions: parallel line We can parallel lines with compass and straightedge by creating a pair of congruent corresponding angles on a transversal. video https://cdn.kastatic.org/ka_thumbnails_cache/a98a299d-ab26-4081-9f38-30b6631e87a8_1280_720_base.png Geometric constructions: parallel line We can parallel lines with compass and straightedge by creating a pair of congruent corresponding angles on a transversal. https://cdn.kastatic.org/ka-youtube-converted/BHLre3UiIho.mp4/BHLre3UiIho.mp4 123 Constructing lines & angles https://www.khanacademy.org/math/geometry/hs-geo-congruence/hs-geo-bisectors/v/constructing-a-perpendicular-line-using-a-compass-and-straightedge 2021-02-16T16:08:14Z Geometric constructions: perpendicular line through a point on the line Sal constructs a line perpendicular to a given line through a point on the line using compass and straightedge. Sal Khan video https://cdn.kastatic.org/googleusercontent/NgTArIZqt6AglZ5SQuuNIwywyAkEg_zZJqGW0Xai67WihDqRYr00cfCae-2SOniO0jK4s-vt5hZ6O0Zg66frCEsD Geometric constructions: perpendicular line through a point on the line Sal constructs a line perpendicular to a given line through a point on the line using compass and straightedge. https://cdn.kastatic.org/ka-youtube-converted/nM-O8llUdwg.mp4/nM-O8llUdwg.mp4 72 Constructing lines & angles 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 Constructing lines & angles https://www.khanacademy.org/math/math-1-illustrative-math-aligned/x193529144fa1e1f6:constructions-and-rigid-transformations/x193529144fa1e1f6:construction-techniques-4-parallel-and-perpendicular-lines/e/construct-parallel-and-perpendicular-lines 2025-06-16T23:54:10.344339665Z Construct parallel and perpendicular lines Provide the next step in compass and straight-edge constructions of parallel and perpendicular lines. Charlie Auen exercise