Which postulate can be used to prove that the two triangles below are congruent?
a. asa (angle-side-angle)
b. sas (side-angle-side)
c. aas (angle-angle-side)
d. not enough information

B. SAA (Side-Angle-Angle)

Step-by-step explanation:

In the diagram given, the horizontal sides of the two triangles are equal. Also, by the principle of opposite angles,

                   < RTS = < QTV

The two angles are equal.

Furthermore, the sum of angles in a triangle is , so the third angle can be determined since

                  < RST = < VQT =

Thus the two triangles are congruent due to side - angle- angle.