Shapes

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Types of Triangles

Triangles are closed shapes with 3 sides and 3 angles. They can be sorted into different groups in different ways. One way to sort them is to see how many sides. If all 3 sides are equal, it is an equilateral triangle. If 2 sides are equal, it is an isoceles triangle, if no sides are equal, it is a scalene triangle.

Lessons:


Irregular and Regular Polygons
Types of Triangles
Quadrilaterals