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geometry
| Term | Definition |
|---|---|
| Parallelogram/Rectangle/Square | A = b x h |
| Triangle | A = b x h / 2 |
| Trapezoid | A = (b1 + b2) x h / 2 |
| Face | A face is a flat surface that forms part of the boundary of a three-dimensional solid shape. |
| Base | A base is a flat surface of a 3D shape, often the bottom or main face. |
| Vertex | A vertex is a point where two or more edges meet on a 3D shape. |
| Edge | An edge is a straight line where two faces of a 3D shape meet. |
| Prism | A prism is a 3D shape with two parallel, congruent bases connected by rectangular faces. |
| Pyramid | A pyramid is a 3D shape with a polygon base and triangular faces that meet at a single point (the apex). |