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two-dimensional| Describing a flat shape having two measurements, or dimensions: length and width. Examples of 2D shapes are square, rectangle, hexagon, and triangle. Accurate drawings of 2D shapes can be constructed and 2D representations of three-dimensional (3D) shapes, consisting of plan, elevations (side views), and cross-sections, serve to show the full structure of the shape. These views are known as projections. |
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