GEOMETRY
Web Resource
Quick Reference

Chapter 1
Chapter 2
Chapter 3
Chapter 4
Chapter 5
Chapter 6
Chapter 7
Chapter 8
Chapter 9
Chapter 10
Chapter 11
 

Chapter 9: Circles

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Some links are repeated for use with more than one lesson.

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These links apply to the entire chapter.

Circles, Chords, Arcs

This site has examples and problems for the students to solve that involve circles.

Circle Definitions

This site defines the parts of a circle.

Circle-Definitions and Formulas

This site defines a circle and its parts, and gives the corresponding formula.

9.1  Equations of Circles

Equations of Circles

This site lists equations of circles.

9.2  Tangents

9.3  Chords and Arcs

9.4  Inscribed Angles

Inscribed Angles

This site defines inscribed angles and proves its theorem.

Inscribed Angles

This site shows the graph of inscribed angles.

9.5  Tangents and Secants

Tangent to Two Circles

This site explains how to construct a line through a given point tangent to a given circle

9.6  Loci

Loci

This site defines the locus of points in different situations.