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.
For a triangle with edges of length, and opposite angles of measure, and, respectively, the Law of Cosines states: In the case that one of the angles has measure (is a right angle), the corresponding statement reduces to the Pythagorean Theorem.