Unit 8 Vocabulary

1. a two-dimensional model or drawing that can be folded into a three-dimensional solid
4. a three-dimensional figure containing two congruent and parallel faces that are polygons
6. lines that are 90 degrees to each other
7. where the sides of two faces meet on the three-dimensional figure
9. of equal measure, having exactly the same size and same shape
11. a three-dimensional figure containing a base that is a polygon and the faces are triangles that share a common vertex, also known as an apex
12. a 4-sided flat shape with straight sides where all interior angles are right angles. opposite sides are parallel and equal length
13. prism a three-dimensional object which has six faces that are rectangles

2. figure a figure that has measurements including length, width (depth), and height
3. the surface a solid object stands on, or the bottom line of a shape such as a triangle or rectangle
5. a flat surface of a three-dimensional figure
8. the distance from top to bottom
10. measurement attribute that describes the number of square units a figure or region covers
11. always the same distance apart and never touching
14. distance; how far from end to end, or from one point to another