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. ... To **construct** a parallel **line** through a point, you'll want to... 1.
Connect the ...

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.

www.ck12.org/book/CK-12-Geometry-Concepts-Honors/section/5.3

Use a compass and straightedge to **construct** parallel and **perpendicular lines**.
**Construct** points of concurrency of triangles. **Construct** parallelograms, trapezoids
...

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 ...