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
I show how to solve math problems online during live instruction in class. This is my way of providing free tutoring for the students in my class and for students anywhere in the world. Every video is a short clip that shows exactly how to solve math problems step by step. The problems are done in real time and in front of a regular classroom. These videos are intended to help you learn how to solve math problems, review how to solve a math problems, study for a test, or finish your homework. I post all of my videos on YouTube, but if you are looking for other ways to interact with me and my videos you can follow me on the following pages through My Blog, Twitter, or Facebook.
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.
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