Solutions Right-angled triangular plate instrument for drawing lines at 90, 45, 60, or 30 degrees has 5 entries with similar clues
- secantRatio of the hypotenuse to the adjacent side in a right-angled triangle
- orthogonalRight-angled
- lateen-sailA triangular sail set at an angle of forty-five degrees to the mast
- obtuse-angleOf an angle more than 90 degrees and less than 180 degrees
- roaring-fortiesStormy ocean tracts between latitudes forty degrees and fifty degrees south