The SAS triangle congruency theorem can be used to prove △ ≅ △ONP.
What is the triangle congruence theorem?
Two triangles are said to fit together if they are the same shape and size. When triangles are parallel sides (sides are in the same position) and parallel angles (angles are in the same position) are parallel (equal).
Which congruence theorem can be used to prove △ ABC ≅ △ def?
Thus, all corresponding parts of congruent triangles are also congruent. Then △ ABC ≅ △ PQR by Angle Side Angle (ASA) rule. Then △ ABC ≅ △ XYZ by Side Angle Side (SAS) rule. Then △ ABC ≅ △ DEF by Side Side Side (SSS) rule.
Learn more about the Congruence theorem at https://brainly.com/question/10677678
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