Question

based on this lesson, what information do you need to prove that two triangles are congruent?
you need to show that all of the corresponding sides have equal lengths.
you need to show that all of the corresponding angles have equal measures.
you need to show that all of the corresponding sides have proportional lengths and all of the corresponding angles have equal measures.
you need to show that all of the corresponding sides have equal lengths and all of the corresponding angles have equal measures.

Explanation:

Step1: Recall the definition of congruent triangles

Congruent triangles have all corresponding sides equal in length and all corresponding angles equal in measure.

Answer:

You need to show that all of the corresponding sides have equal lengths and all of the corresponding angles have equal measures.