# What does similarity mean in triangles?

Though triangle geometry can be done in curved space, the focus here is on a flat (Euclidian) background. Similarity is defined in terms of side length ratios, and as an "all angles are equal" cond... Read More »

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## How to Teach Congruence and Similarity?

From second grade through sixth grade, elementary school students learn about congruent and similar shapes during math class. Math Open Reference defines congruent as "similar in size and shape" an... Read More »
http://www.ehow.com/how_6549960_teach-congruence-similarity.html

## What Are Fact Family Triangles?

Fact family triangles, a slight variation on the traditional flash card concept, are fantastic interactive learning tools that teachers often use to help students memorize not one, but four math fa... Read More »
http://www.ehow.com/info_8492310_fact-family-triangles.html

## What Are the Different Types of Triangles in Geometry?

Three-sided figures known as triangles can be found in architecture as a roof shape, on the sides of pyramids and in rectangles when you cut them along a diagonal. A triangle is bounded by three an... Read More »
http://www.ehow.com/info_8510550_different-types-triangles-geometry.html

## My You Tube fullscreen does not work. It appears as 2 black and white diagonal triangles when i try fullscreen?

Read this on another website - might help...Hello,I was getting the very same anomaly, (a diagonal, white on top/grey onbottom that flashed color when playing), and I just stumbled upon aquick fix:... Read More »

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