Using angle measures and relationships to solve for variables
At the end of the lesson, the final answer should be y = 26 1/3 OR 26.33333..., NOT 26.2
In this lesson, we learn how to use angle measures and relationships to solve for variables. The instructor shows how to use vertical angles and supplementary angles to solve for X and Y in an example problem. Through the process, we see how different angle relationships, such as alternate interior angles and corresponding angles, are used to find the values of unknown angles.
Solving for a variable in angle measure relationships. Vertical angles and supplementary angles are used in this example.
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- What are vertical angles?
- What does it mean for angles to be supplementary?
- How do you solve for x in an angle relationship?
- How do you find angle measures when you have two parallel lines cut by a transversal?
- If angles with measures 4x and 8x - 12 are vertical angles, what does x equal?
- If angles with measures 6y + 10 and 12 are supplementary angles, what does y equal?
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Staff Review
This is a good lesson for learning how angle measures relate to each other, especially when you have two parallel lines cut by a transversal. In this lesson, you will learn how to use vertical angles and supplementary angles to solve for variables x and y, which are variables used to represent angle measures in this figure.
