Ninety

+Ninety marks a substantial quantity, often signifying nearing completion or a significant milestone. It stands as a threshold, just shy of a [Century](/wiki/Century), a powerful point in any [Series](/wiki/Series). In [Geometry](/wiki/Geometry), ninety degrees precisely defines a right angle.

+## See also

+- [Number](/wiki/Number)

+- [Angle](/wiki/Angle)

+- [Quantity](/wiki/Quantity)