| A | B |
|---|
| Minor Arc | Less than half the circle |
| Major Arc | More than half the circle |
| Semicircle | Exactly half a circle |
| Adjacent Arcs | Arcs that are right next to each other |
| Radius | Distance from the center to the circle |
| Diameter | Distance all the way across the circle |
| Square | Quadrilateral that is a rectangle, rhombus, and parallelogram |
| Kite | Has two sets of non-consecutive, congruent, adjacent sides |
| Rectangle | Parallelogram with 4 right angles |
| Parallel Lines | Never intersect; have the same slope |
| A circle with radius of 8 | Has diameter of 16 |
| A circle with radius of 40 | Has diameter of 20 |
| A circle with diameter of 20 | Has radius of 10 |
| A circle with diameter of 18 | Has radius of 9 |
