# 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

## How to Prove Angle-Angle Similarity?

A proof for an angle-angle similarity requires three steps to show that two different angles on two triangles are congruent. Because the triangles have two congruent angles, the triangles are simil... Read More »
http://www.ehow.com/how_8438932_prove-angleangle-similarity.html

## How to Classify Triangles?

Geometry often involves comparing and classifying shapes, line segments and angles. Triangles can be classified by 2 different attributes. A triangle may be named for its angles or for its lines. I... Read More »
http://www.wikihow.com/Classify-Triangles

## All of the Types of Triangles?

Every triangle has three sides and three angles. It is a closed geometric figure, meaning all sides connect. Classify triangles by comparing the length of their sides, by measuring their angles or ... Read More »
http://www.ehow.com/info_8173593_types-triangles.html

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