Franco wants to prove that the base angles of any isosceles triangle are congruent. He draws ∆ABC, as shown, and then draws the angle bisector of ∠A. Use the drop-down menus below to complete Franco’s proof that base angles of an isosceles triangles are congruent.

Franco wants to prove that the base angles of any isosceles triangle are congruent He draws ABC as shown and then draws the angle bisector of A Use the dropdown class=