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surface area
| Question | Answer |
|---|---|
| parallelogram/rectangle/square | A= b times h |
| triangle | A= b times h divided by 2 |
| trapezoid | A=(b1+b2) times h divided by 2 |
| face | faces of a 3D figure are any of the surfaces including the bases |
| base | a prism has two bases, which are parallel to each other and do not touch |
| vertex | the vertex is the corner of a 3D figure |
| edge | The edge is the line segment that joins two faces |
| prism | A prism is a solid figure with two parallel bases that are separated by the height of the figure. The bases are congruent |
| pyramid | A pyramid is a solid figure with one base and triangular faces. The height of the pyramid forms a right angle with the base. Pyramids are named by their base |