Instructional Video

Khan Academy: Geometry: Right Triangles Inscribed in Circles (Proof)

Curated by ACT

This video tutorial [5:35] explains that if the diameter of a circle is one of the sides of a triangle inscribed in the circle then the triangle is a right triangle. This video also appears in the strand Geometry: Circles.

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CCSS: Adaptable
Additional Tags
informal proof, inscribed right triangle, right triangle inscribed in circle, khan academy, khan academy math, inscribed polygon, right triangle
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Classroom Considerations
  • Knovation Readability Score: 2 (1 low difficulty, 5 high difficulty)
  • The intended use for this resource is Instructional
  • This video is hosted on YouTube
Common Core
HSG-C.A.3