Quadrilateral Classification

Overview This set of tutorials provides 34 examples of the types of quadrilaterals and how to classify quadrilaterals based on the sides and angles.

Example 1. A generic quadrilateral with all side measures shown numerically.

Example 2. A generic quadrilateral with all side measures shown as variables.

Example 3. A generic quadrilateral with all angle measures shown numerically.

Example 4. A generic quadrilateral with all angle measures shown as variables.

Example 5. A generic quadrilateral with angle measures shown as numbers and variables.

Example 6. A rectangle with all side measures shown numerically.

Example 7. A rectangle with all side measures shown as variables.

Example 8. A rectangle with all side measures shown as numbers and variables.

Example 9. A rectangle with all angle measures shown numerically.

Example 10. A rectangle with all angle measures shown as numbers and variables.

Example 11. A square with all angle measures shown numerically.

Example 12. A square with all angle measures shown as variables.

Example 13. A square with all angle measures shown as numbers and variables.

Example 14. A square with all side measures shown as numbers.

Example 15. A square with all side measures shown as variables.

Example 16. A square with all side measures shown as numbers and variables.

Example 17. A rhombus with all side measures shown numerically.

Example 18. A rhombus with all side measures shown as variables.

Example 19. A rhombus with all side measures shown as variable and numbers.

Example 20. A rhombus with all angle measures shown numerically.

Example 21. A rhombus with all angle measures shown as variables.

Example 22. A rhombus with all angle measures shown as variables and numbers.

Example 23. A parallelogram with all angle measures shown as numbers.

Example 24. A parallelogram with all angle measures shown as variables.

Example 25. A parallelogram with all angle measures shown as variables and numbers.

Example 26. A parallelogram with all side measures shown as numbers.

Example 27. A parallelogram with all side measures shown as variables.

Example 28. A parallelogram with all side measures shown as variables and numbers.

Example 29. A trapezoid with all angle measures shown as numbers.

Example 30. A trapezoid with all angle measures shown as variables.

Example 31. A trapezoid with all angle measures shown as variables and numbers.

Example 32. A trapezoid with all side measures shown as numbers.

Example 33. A trapezoid with all side measures shown as variables.

Example 34. A trapezoid with all side measures shown as variables and numbers.