# Triangle Congruence Linnea Reyes-LaMon
Get Started. It's Free Triangle Congruence ## 1. Side-Side-Side (SSS)

### 1.2. Leg-Leg (LL)

1.2.1. A special case of SSS

1.2.1.1. The third side can be found using the Pythagorean Theorem

1.2.2. Two pairs of congruent legs in a right triangle

## 2. Side-Angle-Side (SAS)

### 2.2. One pair of congruent angles

2.2.1. The angle must be formed by the two sides

### 2.3. Leg-Leg (LL)

2.3.1. A special case of SAS where the angle is 90°

2.3.2. Two pairs of congruent legs in a right triangle

## 3. Angle-Side-Angle (ASA)

### 3.2. One pair of congruent sides

3.2.1. The side must be shared by the two angles

## 4. Angle-Angle-Side (AAS)

### 4.2. One pair of congruent sides

4.2.1. The side must be opposite one of the angles

## 5. Angle-Side-Side (ASS)

### 5.2. One pair of congruent angles

5.2.1. The angle must be opposite one of the sides

### 5.4. Hypotenuse-Leg (HL)

5.4.1. DOES GUARANTEE CONGRUENCE

5.4.2. A special case of ASS where the angle is 90° (right triangle)

5.4.3. One pair of congruent hypotenuses

5.4.4. One pair of congruent legs