Midsegment Theorem: Lesson

This Midsegment Theorem: Lesson video also includes:

Use half the length to connect the midpoints. A section of a playlist on geometry introduces the concept of a midsegment of a triangle and how to find it. The video states the properties of the midsegment which make up the Midsegment Theorem.

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CCSS: Adaptable
Instructional Ideas

  • Use similar triangles to prove the Midsegment Theorem
  • Use the Midsegment Theorem to find side length and angle measures
Classroom Considerations

  • Pupils should be familiar with the midpoint formula
Pros

  • Contains a link to other midsegment resources by CK-12
  • Rotates the figure when marking midsegments to maintain orientation
Cons

  • None
Common Core