| A | B |
|---|
| circle | the set of all points in a plane that are the same distance, called the radius, from a fixed point, called the center |
| heptagon | a polygon with seven sides |
| hexagon | a polygon with six sides |
| octagon | a polygon with eight sides |
| parallelogram | a quadrilateral with two pairs of parallel sides, congruent opposite angles, and congruent opposite sides |
| pentagon | a polygon with five sides |
| polygon | a closed plane figure that is formed by three or more segments called sides |
| quadrilateral | a polygon with four sides |
| rectangle | a parallelogram with four right angles and opposite sides are congruent |
| rhombus | a parallelogram with four sides of equal length and opposite angles are congruent |
| square | a parallelogram with four right angles and four sides of equal length |
| trapezoid | a quadrilateral with with exactly one pair of parallel sides |
| triangle | a polygon with three sides |
