mathbitsnotebook.com/Geometry/Constructions/CCconstruction4.html

STEPS: 1. Place your compass point on P and swing an arc of any size below the
**line** that crosses the **line** twice. You will be drawing at least a semicircle.

www.khanacademy.org/math/geometry/hs-geo-congruence/hs-geo-bisectors/v/constructing-a-perpendicular-line-using-a-compass-and-straightedge

Sal **constructs** a **line perpendicular** to a given **line** using compass and
straightedge.

www.mathopenref.com/constperpextpoint.html

This page shows how to **construct a perpendicular** to a **line** through an external
point, using only a compass and straightedge or ruler. It works by creating a **line** ...

whistleralley.com/construction/c3.htm

Begin with point **line** k and point R, not on the **line**. 2. Place the compass on point
R. Using an arbitrary radius, draw arcs intersecting **line** k at two points.

web.sonoma.edu/users/w/wilsonst/courses/math_150/c-s/Drop-Perp.html

**Construction** #4. To drop a **perpendicular** from a point to a **line**. Given a **line** and
a point A not on the **line**. open the compass a distance larger than the ...

www.wikihow.com/Construct-a-Perpendicular-Line-to-a-Given-Line-Through-Point-on-the-Line

These types of lines are used often in geometry, so it is important to know how to
construct them. The simplest way to **construct a perpendicular line** is to use a ...

math.stackexchange.com/questions/858791/how-to-make-a-perpendicular-construction-in-3-moves

Jul 7, 2014 **...** Your first move shouldn't be to create a random point on the **line**. ... intersects the
circle at D. Make the **line** AD. It will be the **perpendicular line**.