Видео с ютуба How To Draw Perpendicular To A Line At A Point On The Line
Построение перпендикулярной прямой через точку (на прямой) — Геометрические построения
How to draw a perpendicular line through a point.
Constructing a Perpendicular Line Through a Point (off the line)
TO DRAW A PERPENDICULAR ON A GIVEN LINE FROM A POINT ON IT & FROM A POINT OUTSIDE IT by Hema Thakker
Find Equation of Line Perpendicular to a Line Through a Given Point
Draw Perpendicular on a Line (at the ends and at any point on the line)
How to draw a perpendicular line through a point.
How to draw a perpendicular line from the end of a line using a compass
Construct a perpendicular line at the end of a line
Creating a Perpendicular Line Through a Point on the Line
Constructing Perpendicular from Point to Line (Geometry)
Построение перпендикуляра в точке на прямой
Writing Equations of Lines Parallel and Perpendicular to a Given Line Through a Point