Sophia Learning
Sophia: Language of Geometry
This video lesson defines and provides an example of common geometry terms including theorem, postulate, axiom, and corollary.
Khan Academy
Khan Academy: Terms & Labels in Geometry
Learn about geometry terms like point, line, and ray. We will also learn how to label them.
Math Planet
Math Planet: Geometry: Triangles
Discussion of triangles through the use of examples and a video lesson. [1:08]
Khan Academy
Khan Academy: Triple Bonds Cause Linear Configurations
Understand the linear geometry of a triple bond. [1:11]
Khan Academy
Khan Academy: Ca Geometry: Pythagorean Theorem, Compass Constructions
51-55, Pythagorean Theorem, compass constructions.
Khan Academy
Khan Academy: Ca Geometry: Pythagorean Theorem, Area
36-40, Pythagorean Theorem and area.
Khan Academy
Khan Academy: Ca Geometry: Area, Pythagorean Theorem
26-30, area, circumference, pythagorean theorem.
Khan Academy
Khan Academy: Ca Geometry: Triangles and Parallelograms
Worked examples of triangles and parallelograms.
Khan Academy
Khan Academy: Ca Geometry: Circle Area Chords Tangent
Worked examples of area, chords, and tangents of circles.
Khan Academy
Khan Academy: Ca Geometry: More on Congruent and Similar Triangles
Worked examples of similar and congruent triangles.
Khan Academy
Khan Academy: Ca Geometry: Deductive Reasoning
Worked examples of deductive reasoning and congruent angles.
Khan Academy
Khan Academy: Ca Geometry: Compass Construction
Worked examples of compass construction and coordinates.
Khan Academy
Khan Academy: Missing Angles (Ca Geometry)
Worked examples deducing the measure of angles.
Sophia Learning
Sophia: Coordinate Geometry of Rectangles
This detailed lesson uses slope, midpoint, and distance formulas to prove a quadrilateral is a rectangle in the coordinate plane.
Sophia Learning
Sophia: Vsepr: Basic Geometry
A narrated lesson introducing the five basic shapes of simple molecules. [2:47]
Khan Academy
Khan Academy: Geometry: Parts of a Circle
Identifies and labels basic parts of a circle: center, diameter, radius, and circumference. This video also appears in the Geometry: Circles strand. [2:01]
Khan Academy
Khan Academy: Geometry: Triangle Angle Example 2
Shows how to find the measure of missing angles using the triangle sum theorem and vertical angles. This video also appears in the Geometry: Triangles strand. [4:55]
Khan Academy
Khan Academy: Geometry: Triangle Angle Example 1
Explains how to use the triangle sum theorem to solve for missing angle measures in a triangle. Also addresses the relationship between the measure of an exterior angle of a triangle and the measures of the remote interior angles. This...
Khan Academy
Khan Academy: Worked Examples: Geometry: Ca Geometry: Similar Triangles 1
In this video tutorial students explore a proof using similar triangles.
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