Lesson Plan

Illustrative Mathematics: G C Right Triangles Inscribed in Circles I

Curated by ACT

This task provides a good opportunity to use isosceles triangles and their properties to show an interesting and important result about triangles inscribed in a circle with one side of the triangle a diameter. The fact that these triangles are always right triangles is often referred to as Thales' theorem. Aligns with G-C.A.2.

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CCSS: Adaptable
Classroom Considerations
  • Knovation Readability Score: 5 (1 low difficulty, 5 high difficulty)
  • The intended use for this resource is Instructional|practice
Common Core