Based on the ASA theorem, the additional information you would need to prove that both triangles are equal is: B. Angle P ≅ angle S..
The ASA is a triangle congruence theorem which states that two triangles are congruent if they have two pairs of corresponding congruent angles and a pair of corresponding congruent sides that is included.
From the information given, we have:
Therefore, the additional information needed for both triangles to be congruent by ASA is: B. Angle P ≅ angle S.
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