# Finding the Value of x using Alternate Interior Angles

Taught by mrbrianmclogan
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Lesson Summary:

In this lesson, students will learn how to find the value of x using alternate interior angles. To start, parallel lines and a transversal line are needed. The angles on alternating sides of the transversal are called alternating interior angles, which are equal to each other. By setting two x minus fifteen equal to x plus fifty-five, the value of x can be found. In this specific problem, the value of x is seventy. Finally, this value can be used to find the values of the two angles, which are both equal to one hundred and twenty-five degrees.

Lesson Description:

Finding the value of x using alternate interior angles

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