CPM Homework Help : GB8I Problem 9-76

Determine if the triangles below are congruent. If they are, justify your answer using one of the triangle congruence conditions, and state a sequence of rigid transformations that maps one triangle onto the other.

Quadrilateral, A,B,C,D with diagonal from vertex, D, to vertex, B, dividing it into 2 triangles, labeled as follows: side A,B, 2 tick marks, angle A,B,D, 1 tick mark, angle B,D,C, 1 tick mark, side, C,D, 2 tick marks.

Hint:

Read Math Note box in Lesson 3.1.4 on rigid transformations.
Read the Math Note box in Lesson 7.1.7 on conditions for triangle congruence.

More Help:

Remember a congruence statement looks like $Δ\text{____} ≅ Δ\text{_____}$ .