Question

lesson 43)
complete this sentence with the best of the
choices given.
according to the _, if two angles
of a triangle are congruent (equal), then the
opposite sides are congruent (equal).

Explanation:

This is a geometry - related concept. In geometry, the Isosceles Triangle Theorem states that if two angles of a triangle are congruent (equal), then the sides opposite those angles are congruent (equal).

Answer:

Isosceles Triangle Theorem