This is a regular polygon. It is called an equilateral triangle. The other triangles are irregular polygons. 3D shapes have different properties to 2D shapes. Faces - A face is a flat surface on a ...
This is a regular polygon. It is called an equilateral triangle. The other triangles are irregular polygons. 3D shapes have different properties to 2D shapes. Faces - A face is a flat surface on a ...
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