Measure and Draw Angles Videos - Free Educational Videos for Students in K - 12

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


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.

14 - Reference Angles Explained - Sine, Cosine & Unit Circle - Part 1


By Math and Science

Quality Math And Science Videos that feature step-by-step example problems!

Congruent Figures Part 2 - Proving Triangles Congruent - Definition of Congruent Triangles


By MrPilarski

YouTube presents Congruent Figures Part 2 - Proving Triangles Congruent - Definition of Congruent Triangles, an educational video resource on math.

Angles and parallel lines


By MathPlanetVideos

Find the measure of all the angles in the figure

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.

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

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.

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.

Angles, parallel lines and transversals


By MathPlanetVideos

Find the value of x in the following figure

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

Corresponding Angles in Parallel Lines


By MathsMasterOrg

A simple overview of how to identify corresponding angles