Parallel Lines and Transversals Videos - Free Educational Videos for Students in K - 12

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This page provides a list of educational videos related to Parallel Lines and Transversals. You can also use this page to find sample questions, apps, worksheets, lessons , infographics and presentations related to Parallel Lines and Transversals.


Angles formed between transversals and parallel lines | Geometry | Khan Academy


By Khan Academy

Khan Academy presents Angles formed between transversals and parallel lines, an educational video resource on math.

Parallel and Perpendicular Lines, Transversals, Alternate Interior Angles, Alternate Exterior Angles


By The Organic Chemistry Tutor

parallel and perpendicular lines in addition to transversals and all the angles that are formed by it such as alternate interior and exterior angles.

Equation practice with congruent angles


By Khan Academy

Parallel lines, transversal lines, corresponding angles

Parallel lines 1


By Khan Academy

Parallel lines, transversal lines, corresponding angles

Angles, parallel lines and transversals


By MathPlanetVideos

Find the value of x in the following figure

Angles (part 3) | Angles and intersecting lines | Geometry | Khan Academy


By Khan Academy

This video uses an electronic black board with different colored pens. Angles formed with two parallel lines (defines parallel lines) and a transversal line (a line that crosses the two parallel lines). The video then goes into labeling the various angles, corresponding angles, opposite angles, alternate interior angles, alternate exterior angles, and supplementary angles. The last thing the video explains is that all the angles in a triangle add up to 180 degrees. It shows how to find the measurements of each of these angles. Good video for review of concepts and angle vocabulary. Good for middle school students.

8.5 Three Theorems Involving Proportions (Lesson)


By AutenMath

A lesson on the Angle Bisector and Side Splitter theorems and a theorem relating segments cut by two transversals and three or more parallel lines.

Angles of Parallel Lines - Khan Academy


By Khan Academy

Angles of a transverse line when you intersect parallel lines are discussed in this video. Video discusses parallel lines and what a transverse line is. Video then goes into labeling the angles, such as corresponding angles, opposite angles, alternate interior angles, alternate exterior angles, and supplementary angles. The video shows how to find the measurement of each of the angles using what you know about angles and lines. Good review for concepts of angles and vocabulary associated with angles. Good quality video. Good for middle elementary and middle school students.

Algebra 1 Help | MathHelp.com


By MathHelp.com

This lesson covers parallel lines. Students learn that if two parallel lines are cut by a transversal, then corresponding angles are congruent, alternate interior angles are congruent, and same-side interior angles are supplementary. Students are then asked to find missing values based on these concepts.

McGraw-Hill Math Tutoring | MathHelp.com


By MathHelp.com

This lesson covers the midsegment of triangle. Students learn the following theorems related to parallel lines. If 3 parallel lines form congruent segments along one transversal, then they form congruent segments along every transversal. If a line intersects the midpoint of one side a triangle and is parallel to another side of the triangle, then it intersects the midpoint of the third side of the triangle. If a segment joins the midpoints of two sides of a triangle, then the segment is (a) parallel to the third side of the triangle, and (b) half the length of the third side. Students are then asked to solve problems related to these theorems using Algebra.

Proving the Sum of Measures of Angles in a Triangle are 180


By Khan Academy

This video gives us a walkthrough of the proof that the angle measures of the angles of a triangle add up to 180. This proof requires us to draw in a line on our own (specifically, one that is parallel to one side of the triangle, but it could be any side). Then we can treat the two non-parallel sides as transversals.

Similar Triangles, Part 2 - Khan Academy


By Khan Academy

Video uses an electronic black board with different-colored pens. In this video. Mr. Khan discusses the measurement of alternate interior angles, corresponding angles and how they are similar. Triangles are drawn in two parallel lines and a transversal. Narrator shows how to figure out the length of the sides of the angles when three sides are known. Good quality video. Good for middle elementary and middle school students.

Similar Triangles, Part 2 - Khan Academy


By Khan Academy

Video uses an electronic black board with different-colored pens. In this video. Mr. Khan discusses the measurement of alternate interior angles, corresponding angles and how they are similar. Triangles are drawn in two parallel lines and a transversal. Narrator shows how to figure out the length of the sides of the angles when three sides are known. Good quality video. Good for middle elementary and middle school students.

Triangle angle example 1 | Angles and intersecting lines | Geometry | Khan Academy


By Khan Academy

Figuring out angles in a triangle. A little about exterior angles being the sum of the remote interior angles

Complementary and supplementary angles | Angles and intersecting lines | Geometry | Khan Academy


By Khan Academy

Basics of complementary, supplementary, adjacent and straight angles. Also touching on what it means to be perpendicular. All Khan Academy content is available for free at www.khanacademy.org

Triangle angle example 1 | Angles and intersecting lines | Geometry | Khan Academy


By Khan Academy

Figuring out angles in a triangle. A little about exterior angles being the sum of the remote interior angles

Proof: Vertical angles are equal | Angles and intersecting lines | Geometry | Khan Academy


By Khan Academy

Proving that vertical angles are equal. All Khan Academy content is available for free at www.khanacademy.org

Find measure of vertical angles | Angles and intersecting lines | Geometry | Khan Academy


By KhanAcademy

Now that we've learned about complementary and supplementary angles, let's use algebra to find the measure of vertical angles, or angles opposite each other when two lines cross.

Measuring angles using a protractor | Angles and intersecting lines | Geometry | Khan Academy


By Khan Academy

Let's use our virtual protractor to measure some angles together, shall we?