A 100-degree one is obtuse (5)
I believe the answer is:
angle
(Other definitions for angle that I've seen before include "Use a rod and line" , "Right, acute or obtuse" , "Fish with a rod" , "possibly obtuse" , "one of the old people" .)
I believe the answer is:
angle
(Other definitions for angle that I've seen before include "Use a rod and line" , "Right, acute or obtuse" , "Fish with a rod" , "possibly obtuse" , "one of the old people" .)