KnowMo
Geometric Proof Using Vectors
This video provides an overview of geometric proof using vectors, covering topics such as parallel vectors, collinear points, and resultant vectors. The presenter explains how to represent vectors using notation and how to work with them...
Brian McLogan
Master writing a two column proof using segment addition theorem
Master writing a two column proof using segment addition theorem
Professor Dave Explains
Proving the Pythagorean Theorem
One easy demonstration that proves the validity of the Pythagorean theorem.
Khan Academy
Triangle Medians and Centroids, Special Properties and Parts of Triangles, Geometry
This video discusses the terminology used in geometry, including words like centroid and median. Through this lecture, young mathematicians can see a visual representation of both median and centroid. Also, a proof showing how to...
Khan Academy
Area of Inscribed Equilateral Triangle (Some Basic Trig Used)
Delving into basic trigonometry, this resource shows how to find the area of an inscribed equilateral triangle. Using a high-level problem, HeronÕs theorem is used to find the area of a figure. Before SAT testing, use this as a review.
Khan Academy
Area of Diagonal Generated Triangles of Rectangle Are Equal, Geometry
This lecture explores finding the area of each of the triangles created by drawing two diagonal lines through a rectangle. It provides a detailed explanation of how to use a formula to solve the given problem. Tip: Use this for test...
Khan Academy
Triangle Medians and Centroids, Special Properties and Parts of Triangles, Geometry
This video discusses the terminology used in geometry, including words such as centroid and median. Through this lecture, young mathematicians can see a visual representation of both. The video also demonstrates how to calculate medians.
Khan Academy
Triangle Medians and Centroids (2D Proof), Geometry
In the first part of this series, the instructor addressed the terminology used with medians and centroids of triangles and then showed how to solve this type of problem. He illustrated the concepts using a high-level problem, likely...
Khan Academy
Rhombus Diagonals, Quadrilaterals, Geometry
Delving into proof that the diagonals of a rhombus are perpendicular to each other, this lecture evaluates the angles and sides of this figure. It would serve as a great test preparation activity.
Khan Academy
Area of Diagonal Generated Triangles of Rectangle are Equal, Geometry
This lecture explores the area of each triangle created by drawing two diagonal lines through a rectangle. It provides a detailed explanation of how to use a formula to solve the given problem. Tip: Use this for test preparation purposes.
Sophia Learning
Sophia: Proof (Harder)
This geometry resource discusses two types of proof. Video lessons demonstrating a flow proof and a two-column proof are included.