Use the following information for questions 2–5. Questions 2–4 are the steps in a proof, and question 5 is the conclusion to that proof. Given: ABD CDB, || Prove:ABE CDE Question A student writes the statement BEA DEC to help prove the triangles are congruent. What reason should the student give? (1 point) Responses Given Given Angles cut by a bisector are congruent. Angles cut by a bisector are congruent. Base angles of an isosceles triangle are congruent. Base angles of an isosceles triangle are congruent. Vertical angles are congruent. Vertical angles are congruent.

Answer 1

Base angles of an isosceles triangle are congruent.