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  1. Intro to angle bisector theorem (video) | Khan Academy

    The Angle Bisector Theorem states that when an angle in a triangle is split into two equal angles, it divides the opposite side into two parts. The ratio of these parts will be the same as the ratio …

  2. Using the angle bisector theorem - Khan Academy

    The angle bisector theorem states that when an angle in a triangle is split into two equal angles, it divides the opposite side into two parts. The ratio of these parts will be the same as the ratio of …

  3. Distance between a point & line (video) | Khan Academy

    Thinking about the distance between a point and a line. Proof that a point on an angle bisector is equidistant to the sides of the angle and a point equidistant to the sides is on an angle bisector.

  4. Angle and segment bisector (practice) | Khan Academy

    In this exercise students can practice their knowledge about how to construct an angle bisector and a perpendicular bisector of a line segment.

  5. Review of triangle properties (video) | Khan Academy

    We learned that if AC is really the angle bisector of angle BAD, that the ratio between-- that AB over BC is going to be equal to the ratio of AD to DC. Sometimes this is called the angle …

  6. Geometric constructions: angle bisector (video) | Khan Academy

    Sal constructs a line that bisects a given angle using compass and straightedge.

  7. Similarity | High school geometry | Math | Khan Academy

    Angle bisector theorem Learn Intro to angle bisector theorem Using the angle bisector theorem

  8. Incenter and incircles of a triangle (video) | Khan Academy

    To locate the incenter, one can draw each of the three angle bisectors, and then determine the point at which they all intersect. The incenter is also notable for being the center of the largest …

  9. Solve triangles: angle bisector theorem - Khan Academy

    Solve triangles: angle bisector theorem VA.Math: G.DF.2.e, G.TR.3.e VA.Math.2023: G.DF.2.e, G.TR.3.e Google Classroom Microsoft Teams You might need: Calculator

  10. Similarity | Integrated math 2 | Khan Academy

    We'll solve problems with similar and congruent triangles, discover the angle bisector theorem, and use our new skills to prove relationships. Get ready to become a similarity superstar!