A prism is a 3D object which has a constant cross section - both ends of the solid are the same shape and size and anywhere you cut parallel to these ends will give you the same idenitical shape. For ...
2D shapes are flat, plane shapes. Triangles have three sides and three angles that add up to 180°. Quadrilaterals have four sides and four angles that add up to 360°. Constructing triangles Learn how ...
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