Question

determine the congruent criteria that can be used to

Explanation:

Step1: Recall congruent criteria

The congruent criteria for triangles are SSS (Side - Side - Side), SAS (Side - Angle - Side), AAS (Angle - Angle - Side), ASA (Angle - Side - Angle), and HL (Hypotenuse - Leg) for right - angled triangles.

Step2: Analyze the given information

We have two sides equal (marked with the same tick marks) and the included angle equal ($80^{\circ}$).

Step3: Apply the SAS criterion

The Side - Angle - Side (SAS) criterion states that if two sides and the included angle of one triangle are equal to two sides and the included angle of another triangle, then the two triangles are congruent.

Answer:

Side - Angle - Side (SAS)