Answer | Crossword Clue |
---|---|
opisometers | OPISOMETER, an instrument for measuring curved lines |
opisometer | an instrument for measuring curved lines |
rotameter | an instrument for measuring the length of curved lines |
rotameters | ROTAMETER, an instrument for measuring the length of curved lines |
protractors | An instrument for measuring angles, typically in the form of a flat semicircle marked with degrees along the curved edge |
protractor | An instrument for measuring angles, typically in the form of a flat semicircle marked with degrees along the curved edge |