Proving a Quadrilateral Is a Parallelogram: Lesson

This Proving a Quadrilateral Is a Parallelogram: Lesson video also includes:

If it has the properties of a parallelogram, it must be a parallelogram. A segment of a playlist on geometry presents the converses of the properties of a parallelogram. Given a quadrilateral with specific characteristics, the video proves whether it is also a parallelogram or not.

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CCSS: Adaptable
Additional Tags

Instructional Ideas

  • Review the properties of parallelograms
Classroom Considerations

  • Individuals should understand the converse of a statement
  • The class should know how to prove triangles are congruent and use that information for proofs

  • Uses colors to highlight parts of the quadrilateral
  • Contains a link to more CK-12 resources on proving a figure is a parallelogram

  • None
Common Core