Availability, in the context of a computer system, refers to the ability of a user to access information or resources in a specified location and in the correct format.
Defined, the triangle proportionality theorem states that if you draw a line parallel to one of the sides of a triangle that also crosses the other two sides, then that line will divide the two sides in a proportional way.
In this illustration, line EB is parallel to side CD. (We can see that it intersects sides AC and AD .) This creates proportional segments: In fact, we even have a theorem about this: the Triangle Proportionality Theorem. Apparently, mathematicians got quite a giggle when they first came up with it, as it has earned the nickname of The Side-Splitter Theorem. (To be honest, we don't really get it.