Lots of different straight-sided shapes


A triangle is a shape made of three straight sides. A triangle is the simplest kind of polygon. (A polygon is a shape made of straight sides.)

Although a triangle is the simplest kind of polygon, it is a very important shape. This site shows you one reason triangles are important and lets you play with different kinds of triangles. Strong shapes

Strong Shapes

One of the reasons triangles are important is because they are strong shapes. Go to this page to see why. Different kinds of triangles

Different kinds of triangles

What different kinds of triangles are there? Go to this page to see one way of grouping them.

Copyright Glen Prideaux, 2002.
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