Geometry is packed with terminology that precisely describes the way various points, lines, surfaces and other dimensional elements interact with one …

A unit circle is just a circle that has a radius with a length of 1. But often, it comes with some other bells and whistles. We'll walk you through the steps on how to use it.

Welders and carpenters use all sorts of tools to set things at perfect 90-degree angles. A quick look at the glossary of any geometry textbook will …

You probably have an intuitive idea of what a circle is: the shape of a basketball hoop, a wheel or a quarter. You may even remember from high school …

OK, time for a pop quiz. You've got a right-angled triangle — that is, one where two of the sides come together to form a 90-degree angle. You know …

Learning a new word every day is a pretty good habit to adopt. (Garfield's owner sure thinks so). And in that spirit, here's a fun math term you …

Pi has mesmerized mathematicians for 4,000 years. It's the rarest of mathematical constants, an unfailingly accurate ratio that's also neverending. …

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