1. Always, Sometimes, or Never
Quadrilaterals
Always, Sometimes, or Never

2. A rectangle is a parallelogram. always
Quadrilaterals
A rectangle is a parallelogram. always

3. A parallelogram is a square
Quadrilaterals
A parallelogram is a square
sometimes

4. A quadrilateral is a parallelogram.
Quadrilaterals
A quadrilateral is a parallelogram.
sometimes

5. A trapezoid is a quadrilateral.
Quadrilaterals
A trapezoid is a quadrilateral.
always

6. A parallelogram is a trapezoid.
Quadrilaterals
A parallelogram is a trapezoid.
never

7. Quadrilaterals
A square is a rectangle.
always

8. Quadrilaterals
A rhombus is a square.
sometimes

9. Quadrilaterals
A square is a rhombus.
always

10. A kite has perpendicular diagonals.
Quadrilaterals
A kite has perpendicular diagonals.
always

11. A diagonal in a rhombus bisects opposite angles.
Quadrilaterals
A diagonal in a rhombus bisects opposite angles.
always

12. The consecutive angles in a parallelogram are congruent.
Quadrilaterals
The consecutive angles in a parallelogram are congruent.
sometimes

13. The diagonals in a rhombus are perpendicular.
Quadrilaterals
The diagonals in a rhombus are perpendicular.
always

14. In a trapezoid the base angles are congruent.
Quadrilaterals
In a trapezoid the base angles are congruent.
sometimes

15. The diagonals in a rectangle are congruent.
Quadrilaterals
The diagonals in a rectangle are congruent.
always

16. Quadrilaterals
The sum of the measures of the exterior angles of a quadrilateral equal the sum of the measures of the interior angles of a quadrilateral.
Always

17. If the sides of a polygon are equal then the polygon is regular.
Quadrilaterals
If the sides of a polygon are equal then the polygon is regular.
sometimes

18. A trapezoid is a parallelogram.
Quadrilaterals
A trapezoid is a parallelogram.
never

19. A trapezoid has one pair of congruent, parallel sides.
Quadrilaterals
A trapezoid has one pair of congruent, parallel sides.
never

20. A square is both a rhombus and a rectangle.
Quadrilaterals
A square is both a rhombus and a rectangle.
always