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Math Open Reference

Features animated and interactive drawings to demonstrate geometry terms and concepts. The table of contents on Math Open Reference is divided into four basic categories; plane geometry, coordinate geometry, solid geometry, and function explorer tools.

 Angles and Parallel Lines

Knowledge Box Math (Angles)

Test Prep Information

Math is Fun

Parallel Lines cut by a Transversal

Interactive Angles

Mr. Perez Online

Khan Academy Video

Angles Jeopardy

Angle Quiz


Line Design

Lines and Line Segments

Quia: Geometric Terms

Coordinate Geometry


Labeling Shapes

Geometry Flashcards

Hidden Picture Game

Buzzing with Shapes