# Circle Touching 3 Points

How to construct a Circle touching 3 Points

using just a compass and a straightedge

images/construct.js?mode=circle3pts

Steps:

- Join up the points to form two lines
- Construct the perpendicular bisector of one line
- Construct the perpendicular bisector of the other line
- Where they cross is the center of the circle
- Place compass on the center point, adjust its length to reach any point, and draw your circle!

Note: this is the same method as Circumscribe a Circle on a Triangle