A. Determine whether the quadrilateral is a parallelogram based on the following conditions. Put a v beside each number if you agree with the condition and X you disagree. 1. Both pairs of opposite sides are congruent. 2. The diagonals are congruent. 3. The consecutive angles are complementary. 4. The opposite angles are congruent. 5. All sides are congruent. 6. Diagonals bisect each other. 7. All angles are congruent. 8. The diagonals are perpendicular. 9. The opposite sides are parallel. 10. The diagonal divides the quadrilateral into two congruent triangles. B. Find the value of x and y that will make each quadrilateral a parallelogram. '図四 3y +2 2. 3. (2y + 36 +10 y+4 (Sy-3)0

How do you describe the opposite sides of a parallelogram? a.they are always congruent b.they are always parallel c.both a and b d.neither a nor b which of the following quadrilaterals has only one pair of parallel lines a.rectangle b.rhombus c.square d.trapezoid which of the following quadrilateral has one condition "two consecutive angles are supplementary" a.square b.rhombus c.square d.trapezoid

6. The quadrilaterals are similar. Find the value of x. B 40 A 25 35 C 56 30 D P 35 49 S