MathWords.com, Annenberg Learner and Ditutor provide lists of geometry terms and definitions from A to Z. MathWords.com offers terminology regarding plane and solid geometry as well as basic triangle trigonometry. This w... More »

Three undefined terms in geometry are point, line and plane. These three terms are explained but not defined as everyone has an intuitive idea of these concepts. These terms serve as the foundation on which geometry is b... More »

Some common words used specifically in geometry are "perpendicular," "vertex," "obtuse," "scalene" and "diameter." Other terms often used in geometry are "arc," "cylinder," "hypotenuse," "ordered pair" and "y-intercept." More »

Three undefined terms in geometry are point, line and plane. These three terms are explained but not defined as everyone has an intuitive idea of these concepts. These terms serve as the foundation on which geometry is b... More »

In geometry, the law of detachment is a form of deductive reasoning in which two premises in relation to the same subject are examined to come to a reasonable conclusion. This law considers a hypothesis made with regard ... More »

A geometry tutorial may cover the basic concepts used in planar geometry or cover a specific aspect of geometry more extensively. A tutorial often includes sample problems, lists key concepts and explains the application... More »

Numerous mathematicians have studied geometry and made major contributions throughout history. Ancient geometers of importance include Pythagoras, Euclid, Hippocrates and Archimedes. More modern figures include Rene Desc... More »