| Answer | Crossword Clue |
|---|---|
| RADII | Lines inside a circle |
| periscian | a person living inside the polar circle |
| periscians | PERISCIAN, a person living inside the polar circle |
| hypocycloid | a curve generated by a point on the circumference of a circle which rolls on the inside of another circle |
| hypocycloids | HYPOCYCLOID, a curve generated by a point on the circumference of a circle which rolls on the inside of another circle |
| dodgeball | A game in which players in a circle try to hit opponents inside the circle, thus eliminating them, with an inflated ball |
