| A | B |
|---|
| circle | a closed plane figure made with all of the points the same distance from a point called the center |
| diameter | any line segment that connects two points on the circle and passes through the center |
| radius | any line segment that connects the center to a point on the circle |
| chord | any line segment that connects two points on the circle |
| perimeter | the distance around a figure |
| symmetric | a figure that can be folded into two congruent halves that fit on top of each other |
| line of symmetry | a line on which a figure can be folded so that both halves are congruent |
| area | the number of square units needed to cover the region inside a figure |
| volume | the number of cubic units needed to fill a solid figure |
| slide (translation) | transformation that moves a figure in a straight direction (like a stamped design) |
| flip (reflection) | transformation that creates a mirror image |
| turn (rotation) | transformation that moves a figure around a point |
| congruent | figures with the same size and shape are ___ |
| similar | figures with the same shape that may be the same or different sizes are ___ |
