Classifying two dimensional shapes by angles and sides

If I told you to draw 10 different triangles, I bet they would be all different sizes and look different. That's because even though a triangle has only 3 sides, there are still many different types of triangles. In math, we have different names for these triangles, so join us as we learn all about what the names are of these triangles, and how to identify them! We'll also touch on all sorts of 4 sided shapes, or quadrilaterals, and the ways that they're similar and different.

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Geometry - 4th grade