Determining the value of x by finding the sum of interior angles

The video tutorial explains how to find the value of X in a quadrilateral by using the formula for the sum of angles. It starts with setting up the problem, explaining the formula, and then setting up and solving the equation to find X, which is determined to be 50 degrees.

What is the formula for the sum of the angles in a quadrilateral?

How do you combine like terms when solving for X in the equation presented?

Explain the steps taken to arrive at the final equation 6X = 300.

What is the value of X after solving the equation?

What does the final result indicate about the measure of angle X?