The other triangles are irregular polygons. 3D shapes have different properties to 2D shapes. Faces - A face is a flat surface on a 3D shape. Edges - An edge is where two faces meet. For example a ...
Edges - An edge is where two faces meet. For example a cube has 12 edges. Vertices - A vertex is a corner where edges meet (the plural is vertices). For example a cube has 8 vertices. 2D shapes ...
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