Read this article and watch the videos. Pay attention to the angle bisector theorem, which states that any point on an angle bisector is equidistant to both sides of the angle. This allows us to create two identical triangles on either side of the angle bisector. Closely read examples 1–3.

Then, complete review questions 1–3 and check your answers.

Click https://www.ck12.org/geometry/angle-bisectors-in-triangles/lesson/Angle-Bisectors-in-Triangles-GEOM/ link to open resource.