Question

If segment AB is congruent to segment CD and segment AB is parallel to segment CD, which of the following steps is not correct in proving that ABCD is a parallelogram? a If two parallel lines are cut by a transversal, the alternate interior angles are congruent. b SAS: If two sides and the included angle of one triangle are congruent to the corresponding parts of another triangle, the triangles are congruent. c Definition of perpendicular lines d CPCTC: Corresponding parts of congruent triangles are congruent.

Answer 1

Answer: C

Explanation:

Perpendicular lines are irrelevant. A is to create a triangle and to show 2 angles in the triangles are congruent. B is to prove the 2 triangles are congruen. D is to prove that AC and BD are congruen. no where is perpendicular lines involved.