9. < Q ; < S and QR = SR . select the correct statement for the two triangles . What rule proves the congruence ? ( 1point ) A. QPR = RTS ; ASA B. QPR = STR ; ASA C. QPR = STR ; ASA D. QPR = RTS ; SSS
The theorem proving the triangles' congruence is Angle-side-angle (ASA) and the angle corresponding to Q is S; therefore, the answer is B. QPR = STR; ASA