Inscribe a Circle in a Triangle
How to Inscribe a Circle in a Triangle
using just a compass and a straightedge
Inscribe: To draw on the inside of, just touching but never crossing the sides (in this case the sides of the triangle).
- Bisect one of the angles
- Bisect another angle
- Where they cross is the center of the inscribed circle, called the incenter
- Construct a perpendicular from the center point to one side of the triangle
- Place compass on the center point, adjust its length to where the perpendicular crosses the triangle, and draw your inscribed circle!