This video covers one type of bisector, the type that splits a segment into two congruent halves at a right angle. The theorem states that if a point is on a segment's perpendicular bisector, it's equidistant from the segment's endpoints, resulting in... congruent triangles!
Angle Bisectors in Triangles
This video covers the theorem that states that if a point is on an angle's bisector, it's equidistant from the sides of the angle. Not surprisingly, this will create congruent triangles! Geometry is so predictable...
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