S, r, c and m
hope this helps :)
The answer to the question is the first one
9514 1404 393
Answer:
yes
Step-by-step explanation:
There are at least a couple of ways to show congruence.
1. ∠P ≅ ∠Q . . . given; PB ≅ QB . . . given; ∠QBS ≅ ∠PBR . . . vertical angles; ΔPRB ≅ ΔQSB by ASA
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2. PB ≅ QB . . . given; ∠QBS ≅ ∠PBR . . . vertical angles; BR ≅ BS . . . given; ΔPRB ≅ ΔQSB by SAS
