Which statement about quadrilateral ABCD can be proved to be true? A. Consecutive angles of a parallelogram are congruent.
B. The diagonals of ABCD bisect opposite angles.
C. Consecutive angles of ABCD are supplementary.
D. Diagonals of ABCD are congruent.

What is the lcm of 16 and 40 ? 24 and 40 ?

What is the point slope form of a line with slope -5 that contains point (2,-1)

Match the following reasons with the statements given to create the proof. 1. do = ob, ao = oc sas 2. doc = aob given 3. triangle cod congruent to triangle aob vertical angles are equal. 4. 1 = 2, ab = dc if two sides = and ||, then a parallelogram. 5. ab||dc if alternate interior angles =, then lines parallel. 6. abcd is a parallelogram cpcte