Solutions Of an angle less than ninety degrees has 5 entries with similar clues
- acutelike an angle that is less than 90 degrees
- obtuse-angleAngle more than 90 degrees and less than 180 degrees
- nonagenarianA person between ninety and ninety-nine years old
- reflex-angleAngle more than 180 degrees
- roaring-fortiesStormy ocean tracts between latitudes forty degrees and fifty degrees south