How Do You Use Vertical Angles to Find Angle Measures Using Algebra?

How Do You Use Vertical Angles to Find Angle Measures Using Algebra?

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When two lines or segments intersect, two pairs of vertical angles are formed. By the Vertical Angle Theorem, vertical angles are congruent. If you have algebraic expressions for the measures of the vertical angles, you can use the Vertical Angle Theorem to solve for their measures. Check out the tutorial to learn more!

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Background Tutorials

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      What Are Numerical and Algebraic Expressions?

      An expression is just a mathematical phrase. In this tutorial, you'll learn about two popular types of expressions: numerical and algebraic expressions. A numerical expression contains numbers and operations. An algebraic expression is almost exactly the same except it also contains variables. Check out this tutorial to learn about these two popular kinds of expressions!

  • Vertical Angles

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      What are Vertical Angles?

      Vertical angles have a very special quality. They are always congruent to one another! Check out this tutorial to learn about and see how to identify vertical angles!

  • Writing and Solving Equations with Variables on Both Sides