Triangle Congruence

4. A geometric property stating that any side or angle is congruent to itself. Ex AB=AB
6. Bisector A ray or line that divides an angle into two congruent angles.
7. (Side-Angle-Side) If two sides and the included angle of one triangle are congruent to those of another.
8. The angle formed between two given sides.
9. Opposite angles formed by two intersecting lines; always congruent.
11. (Side-Side-Side) If all three sides of one triangle are congruent to all three sides of another triangle.
13. A point that divides a segment into two congruent segments.
14. (Angle-Side-Angle) If two angles and the included side of one triangle are congruent to those of another.
15. (Hypotenuse-Leg) A right triangle congruence theorem; if the hypotenuse and one leg of a right triangle are congruent to those of another.

1. Triangles that have exactly the same size and shape, with corresponding sides and angles equal.
2. The side between two given angles.
3. A line that divides a segment into two equal parts at a 90° angle.
5. (Angle-Angle-Side) If two angles and a non-included side are congruent.
10. Matching sides and angles of congruent triangles
12. A triangle with one 90° angle (important for HL congruence).