definitions
- Area- the number of square units needed to cover a given surface.
- Circumference- the distance around a circle.
- Composite figure- a figure made up of simple geometric shapes.
- Diameter- a line segment that passes through the center of a circle and has endpoints on the circle, of the length of that segment.
- Parallelogram- a quadrilateral with two pairs of parallel sides.
- Perimeter- the distance around a polygon.
- Prism- a polyhedron that has two congruent polygon-shaped bases and other faces that are all parallelograms.
- Radius- a line segment with one endpoint at the center of a circle and the other endpoint on the circle, or the length of that segment.
- Surface area- the sum of the areas of all the surfaces of a three-dimensional solid.
- Trapezoid- a quadrilateral with exactly one pair of parallel sides.
- Volume- the number of cubic units inside a three-dimensional solid.