Vertical Angles and Solving for an Angle
In this lesson, we learn about vertical angles - angles that are opposite each other when two lines intersect. We discover that vertical angles are always equal to each other, no matter how the lines intersect. By using this knowledge, we can solve for missing angles by setting up equations that show the equality between vertical angles, and then solving for the variable. This straightforward approach is a useful tool for finding angle measures in geometry problems.
Finding the values of vertical angels
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- What are vertical angles?
- If I am given the measure of an angle with a variable in it, and I know the measure of the angle the vertical to it, how can I solve for the variable?
- If I am given an angle with measure of 120 degrees, and the angle vertical to it has a measure of 2x-10 degrees, then how do I solve for x?
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Staff Review
This lesson shows how to solve for a variable when you know the measure of an angle in terms of the variable, and you know the measure of the angle that is vertical to it.
