Geometry Module 5, Topic E, Overview

Student Taking Notes on Studies

The module concludes with Topic E focusing on the properties of quadrilaterals inscribed in circles and establishing Ptolemy's theorem.  This result codifies the Pythagorean theorem, curious facts about triangles, properties of the regular pentagon, and trigonometric relationships.  It serves as a final unifying flourish for students' year-long study of geometry.

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Common Core Learning Standards

CCLS State Standard
G.C.3 Construct the inscribed and circumscribed circles of a triangle, and prove properties of angles for...

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