1 to leave. Origin: Used in US military in 1970s. Perhaps based on uniform regulations specifying that soldiers wear headgear when outdoors. Also hat up.It's almost two o'clock; I have to hat.  See more words with the same meaning: to go, leave, exit.
An obtuse angle is any angle greater than 90 degrees and less than 180 degrees. Yes. An obtuse angle is geometrically greater that a right angle. Any number degree larger than â¦ 90 degrees is obtuse, as any number degree lesser than 90 degrees is acute.
A right angle is one whose measure is exactly 90Â°. On a drawing the symbol can be used to label two rays or segments as perpendicular (at right angles). In symbols we write that one line or segment is perpendicular to another using the symbol . An obtuse angle is one whose measure is strictly between 90Â° and 180Â°.