What is "if rt is 10 centimeters long?

Here's some information assuming "rt" refers to the length of a line segment:

If the line segment "rt" is 10 centimeters long, it means the distance between point "r" and point "t" is precisely 10 centimeters. This provides a concrete measurement of a specific length. This information can be used to calculate the area and perimeter of shapes that includes "rt", if it is part of a geometric%20shape.