Indirect Measurement: Lesson

This Indirect Measurement: Lesson video also includes:

When the tape measure will not reach, use similarity. An installment of a large playlist on geometry introduces the method of indirect measurement. Using a story of finding the distance to the sun, the video shows how to use similar triangles to find measurements indirectly.

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CCSS: Adaptable
Instructional Ideas

  • Review solving proportions for unknowns
  • Use the method of indirect measurement to measure the height of either the flag pole or a tree at school
Classroom Considerations

  • The class should understand similar triangles
Pros

  • Shows the algebra used to work the examples
  • Links to more resources using similar triangles
Cons

  • None
Common Core