Geometry Vocab

2. a solid shape with one polygon base and all other faces are triangles that come to a point
4. a three-sided polygon
9. the point at which two edges, line segments, lines, or rays meet to form an angle
10. the amount of space inside a solid, 3-D figure
12. a line segment created when two faces meet in a solid figure
15. a type of shape made up of two or more combined figures that create a unified, single shape
16. a quadrilateral with opposite sides parallel and congruent with four right angles
19. a type of unit of measurement of length, perimeter, and circumference (ex. inches, feet, yards)
20. a type of unit, measuring 1 unit by 1 unit, that is used in measuring area
21. to separate a shape into smaller shapes in order to find it's total area

1. a quadrilateral whose opposite sides are both parallel and equal in length
3. a quadrilateral with exactly one pair of parallel sides
5. the sum of the space covered by all the flat sides of a solid figure, measured in square units
6. a regular solid having six congruent square faces
7. the distance from one base of a quadrilateral to another, or the distance from the point of the triangle to the base, forming a right angle
8. a type of solid with two identical bases and all other faces are rectangles
11. a flat surface that is one side of a solid figure
13. the unit of measure for volume; 1 unit x 1 unit x 1 unit
14. the number of square units needed to cover a flat (2D) surface
17. a flat, two-dimensional model of a three-dimensional shape
18. the side of a quadrilateral or triangle that is perpendicular to the height of the shape; in a trapezoid, the two parallel sides