Respuesta :
because both triangles share segment AC, the reflexive property of equality states that AC = AC. therefore, they are congruent by ASA: B
The theorem that can be used to prove that ΔABC and ΔCDA are congruent is: B. ASA
What is the ASA Congruence Theorem?
The Angle-Side-Angle Congruence Theorem (ASA), is a triangle theorem that proves that two triangles having two pairs of congruent angles and a pair of equal sides are congruent to each other.
Thus, ΔABC and ΔCDA have:
- One pair of congruent sides - AC ≅ AC (reflexive property)
- Two pairs of congruent angles - ∠DAC ≅ ∠BCA and ∠BAC ≅ ∠DCA
Therefore, the theorem that can be used to prove that ΔABC and ΔCDA are congruent is: B. ASA
Learn more about ASA Theorem on:
https://brainly.com/question/82493
