Which triangle defined by three points on the coordinate plane is congruent with the triangle illustrated, and why?

A)(-1, 1)(-2, 1)(-1, 4); because corresponding pairs of angles are congruent.

B)(-2, -3)(-4, -3)(-2, -9); because corresponding pairs of angles are congruent.

C)(-1, 1)(-2, 1)(-1, 4); because corresponding pairs of sides and corresponding pairs of angles are congruent.

D)(-2, -3)(-4, -3)(-2, -9); because corresponding pairs of sides and corresponding pairs of angles are congruent.

Guest May 16, 2017