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1.A quadrilateral is a parallelogram if both pairs of opposite sides are___
a. parallel b. perpendicular c. straight d.arc

2. A quadrilateral is a parallelogram if both pairs of ____ angles are congruent. a. opposite b. adjacent c. vertical d. supplementary

3. A quadrilateral is a parallelogram if the____ bisect each other.
a.straight b.diagonals c.angles d.vertices

4. A quadrilateral is a parallelogram if each diagonal divides it into two congruent____ a.square b.triangle c.rhombus d.rectangle

5. A parallelogram which all sides are congruent and all angles are congruent. a.square b.rectangle c.trapezoid d.kite

6. A parallelogram which all sides are congruent.
a.square b.rectangle c.trapezoid d.kite

7. A parallelogram which all angles are congruent or right angles.
a.rhombus b.rectangle c.trapezoid d.kite

8. All rectangles is a square.
a.true b.false C.sometimes true d.never true

9.Parallelograms are
a.triangles b.quadrilaterals c.pentagons d.hexagons

10.The opposite sides of a parallelogram are____
a.congruent b.perpendicular c.skew d.supplementary