Chapter 6: Polygons and Quadrilaterals

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

6.1  Polygons and Quadrilaterals

http://www.math.com/tables/geometry/polygons.htm
This site defines polygons, lists their names, and gives their formulas.

http://www.regentsprep.org/regents/math/quad/lquad.htm
This page lists the quadrilaterals and their characteristics and includes pictures.

6.2  Angles of Polygons

http://www.algebralab.org/lessons/lesson.aspx?file=Geometry_AnglesSumPolygons.xml
This page explains the sum of the angles in polygons.

http://www.regentsprep.org/rEGENTS/MATH/math-topic.cfm?TopicCode=poly
This page has lessons and practice problems on the sum of interior and exterior angles of polygons.

6.3  Properties of Quadrilaterals

http://www.explorelearning.com/index.cfm?method=cResource.dspResourcesForCourse&CourseID=258
This site contains gizmos to explain quadrilaterals and other polygons.

http://www.math.com/school/subject3/lessons/S3U2L3GL.html
This site defines quadrilaterals and lists the five most common types.

http://www.answers.com/topic/quadrilateral
This page lists the quadrilaterals with pictures and explains their properties.

6.4  Properties of Parallelograms

http://www.coolmath.com/reference/parallelograms.html
This page explains the properties of parallelograms.

6.5  Special Parallelograms

http://www.freemathhelp.com/feliz-special-parallelograms.html
This page discusses special parallelograms.

http://www.cliffsnotes.com/WileyCDA/CliffsReviewTopic/Properties-of-Special-Parallelograms.topicArticleId-18851,articleId-18797.html
This site explains the properties of special parallelograms.

6.6  Properties of Trapezoids

http://www.coolmath.com/reference/trapezoids.html
This site explains the properties of trapezoids with pictures.

http://www.cliffsnotes.com/WileyCDA/CliffsReviewTopic/Properties-of-Trapezoids.topicArticleId-18851,articleId-18798.html
This page states the properties of trapezoids.