# Practice a angles formed by parallel lines and transversals

## Parallel Lines and Transversals

Ocean waves move in parallel lines toward the shore. The figure shows Sandy Beaches windsurfing across several waves. For this exercise, think of Sandy's.

and what full howAnswer: A transversal is a line, like the red one below, that intersects two other lines. Typically, the intercepted lines like line a and line b shown above above are parallel , but they do not have to be. Answer: When a transversal cuts or intersects parallel lines several pairs of congruent and supplementary angles are formed. Some people find it helpful to use the 'Z test' for alternate interior angles. If you can draw a Z or a 'Backwards Z' , then the alternate interior angles are the ones that are in the corners of the Z. There are 2 types of supplementary angles that are formed: same side interior and same side exterior.

In this lesson students learn about transversals, the types of angles formed when a transversal crosses two lines, and the relationships between these angles if the two lines crossed are parallel.

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Since the labeled angles are alternate interior ones , they are congruent. The red angles below are alternate exterior ones , they are equal. The pink angles below are same side interior ones , which means they are supplementary angles so we can set up the equation below. The darkened angles are corresponding and are congruent so we can set up the equation:. Free Algebra Solver Make a Graph Graphing Calculator. X Advertisement.

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## Parallel Lines cut by a Transversal

Introduction: Parallel lines create situations in which some angles formed by intersecting lines transversals are equal. We will outline which angles are equal.

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Angles formed by parallel lines and transversals - Geometry - Khan Academy

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Angles, parallel lines, & transversals (video) | Khan Academy

Angles of Parallel Lines, Transversals, and Triangles Practice