Geometry - 4th Edition

Chapter 10: Circles

After viewing a link, close the browser window to return to this page.
Some links are repeated for use with more than one lesson.

Please report broken links to Kathy Kral

These sites apply to the entire chapter.

http://www.explorelearning.com/index.cfm?method=cResource.dspResourcesForCourse&CourseID=262
This page contains gizmos explaining the circle and different aspects of the circle.

http://www.math.com/tables/geometry/circles.htm
This site defines a circle and its parts, and gives the corresponding formula.

10.1 Equations of Circles

http://home.windstream.net/okrebs/page61.html
NEW This page explains finding the equation of a circle and shows examples.

http://www.mathwarehouse.com/geometry/circle/equation-of-a-circle.php
This site explains equations for circles and has an online quiz about equations of circles.

10.2 Tangents

http://www.mathopenref.com/tangent.html
This page explains tangents and has a virtual circle to experiment with tangents. This website requires Java to run some of its features.

http://www.mathwarehouse.com/geometry/circle/tangent-to-circle.php
This page defines tangents and has an online quiz with about tangents.

10.3 Chords and Arcs

http://www.freemathhelp.com/Lessons/Geometry_Arcs_and_Chords_BB.htm
This site contains a video tutorial with notes on arcs and chords.

http://www.explorelearning.com/index.cfm?method=cResource.dspDetail&ResourceID=175
This page contains a gizmo explaining arcs and chords.

10.4 Inscribed Angles

http://www.pinkmonkey.com/studyguides/subjects/geometry/chap7/g0707401.asp
This site defines inscribed angles and proves its theorem.

http://www.ronblond.com/M11/INSC.INSC.APPLET/
This site shows the graph of inscribed angles.

10.5 Angles Formed by Tangents and Secants

http://www.algebralab.org/lessons/lesson.aspx?file=Geometry_CircleSecantTangent.xml
This site includes explanations, diagrams, and practice related to tangents and secants.

10.6 Loci

http://library.thinkquest.org/16284/g_circle_5.htm#Loci
This page briefly discusses the properties of loci.