| 100% | QUADRANT | 8 | Quarter of the circumference of a circle |
| 80% | ARC | 3 | Part of the circumference of a circle |
| 80% | ARCS | 4 | Parts of the circumference of a circle; curves |
| 73% | RATIO | 5 | Pi is one, between the circumference of a circle and its diameter |
| 73% | RATIO | 5 | Pi is one, for the circumference of a circle to its diameter |
| 62% | HIND | 4 | Quarters at the back of a horse |
| 62% | ARCS | 4 | Parts of circumference of a circle |
| 61% | ARC | 3 | Also the arch of a circle |
| 61% | DIAMETER | 8 | Line through the center of a circle |
| 61% | DIAMETER | 8 | Measurement across the midpoint of a circle |
| 61% | RADIAL | 6 | Spreading from the center of a circle |
| 61% | BISECTOR | 8 | Line through the middle of a circle |
| 60% | CLUBS | 5 | A quarter of the deck |
| 60% | CLUBS | 5 | A quarter of the cards |
| 60% | DIAMETER | 8 | Line going through the middle of a circle |
| 60% | DIAM | 4 | Line through the middle of a circle: Abbr. |
| 59% | SQUARED | 7 | Formula for the area of a circle, "pi r __" |
| 58% | RADIUS | 6 | Line from the center to the edge of a circle |
| 58% | ROUNDEL | 7 | In heraldry, a charge in the shape of a circle |
| 58% | HEAD | 4 | Circle at the top of a stick figure |
| 58% | ARCS | 4 | Parts of a circle's circumference |
| 58% | ARC | 3 | Part of a circle's circumference |
| 58% | ARC | 3 | Segment of a circle's circumference |
| 58% | ASIA | 4 | About a quarter of the UN |
| 58% | QUADRANT | 8 | Quarter of a circle |
| 58% | RADII | 5 | Lines that connect the center of a circle to its edge |
| 57% | OCTANT | 6 | One eighth of a circle's circumference |
| 57% | EAGLE | 5 | Bird on the back of a quarter |
| 57% | EAGLE | 5 | Image on the back of a quarter |
| 57% | ETNA | 4 | About a quarter of the population of Sicily lives on its slopes |