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Properties of 2D shapes and 3D objects Glossary (final draft 14.7.16)

2D shapes have only 2 dimensions and are flat e.g. square, rectangle, triangle, circle, pentagon, hexagon, heptagon, octagon, nonagon, decagon, parallelogram, rhombus, kite, quadrilateral, trapezium. 3 Dimensional objects (3D) 3D objects have three dimensions. The flat surfaces (faces) of many 3D objects are made up of 2D shapes e.g.