Determine the length of a diagonal of a rectangle

The video tutorial explains how to find the length of a diagonal in a rectangle by setting up and solving an equation. It begins with a discussion on the properties of rectangles, particularly the bisecting nature of their diagonals. The instructor sets up an equation to find the variable X, solves it, and uses the value to calculate the diagonal's length. The lesson concludes with a reminder to complete homework.

What is the significance of the bisected diagonals in a rectangle?

Describe the process of isolating the variable X in the equation derived from the rectangle's properties.