| Answer | Crossword Clue |
|---|---|
| RADII | Two may make a diameter |
| RADII | Two make a diameter |
| RADII | Two make the diameter |
| ANGLE | Two lines may make one |
| caliper | any of various measuring instruments having two usually adjustable arms, legs, or jaws used especially to measure diameter or thickness usually used in plural a pair of calipers |
| towers | a building or structure typically higher than its diameter and high relative to its surroundings that may stand apart (as a campanile) or be attached (as a church belfry) to a larger structure and that may be fully walled in or of skeleton framework (as an observation or transmission tower) |
