How to find the value of x in angles of a triangle

What are Linear Pairs?
Linear Pairs are two adjacent angles whose non common sides form a straight line. Linear pairs are supplementary angles i.e.

they add up to 180°.

The following diagrams show examples of Linear Pairs.

How to find the value of x in angles in transversal

Scroll down the page for more examples and solutions on how to identify and use Linear Pairs.

 

Linear Pairs and Vertical Angles
This video describes linear pairs and vertical angles. It also solves a few example problems to help you understand these concepts better.

Linear Pair Review
Example of how to find the measure of the angles in a linear pair.

Linear Pair Angles
An example of solving for a variable for linear pair angles

Solving for Linear Pair and Vertical Angles
This video that explains how to solve for the values of x and y when given angles directly across from each other (vertical angles) and next to each other (linear pair angles).

Try the free Mathway calculator and problem solver below to practice various math topics.

Try the given examples, or type in your own problem and check your answer with the

how to solve for x in angle bisectors

how to solve for x in vertical angles