## Using angle measures and relationships to solve for variables

Using angle measures and relationships to solve for variables
• Currently 3.0/5 Stars.
8567 views, 1 rating - 00:04:23
Part of video series Solving for Angle Measures
Taught by mrbrianmclogan

### Meets NCTM Standards:

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At the end of the lesson, the final answer should be y = 26 1/3 OR 26.33333..., NOT 26.2
Solving for a variable in angle measure relationships. Vertical angles and supplementary angles are used in this example.
• 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?
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.
• Currently 3.0/5 Stars.
Reviewed by MathVids Staff on January 02, 2012.