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Area of diagonal generated triangles of rectangle are equal | Geometry | Khan Academy
By Khan Academy
In this video, Mr. Khan draws a box and two intersecting lines that produce several triangles. Mr. Khan proves that the area of these diagonal-generated triangles of the rectangle are equal. He goes over the formula for finding the area of a triangle. Sal Khan is the recipient of the 2009 Microsoft Tech Award in Education. The screen gets busy (and dark)--the viewer may want to open to 'full screen' to see everything. The sound is a little low
Static Friction and Kinetic Friction Physics Problems With Free Body Diagrams
By The Organic Chemistry Tutor
This physics video tutorial provides a basic introduction into kinetic friction and static friction. It contains plenty of examples and physics problems that asks you to calculate the acceleration using newton's laws of motion. The static frictional force is equal to the applied force up to a maximum value. The kinetic friction force is a constant value that depends on the interaction between the horizontal surface and the object. All frictional forces is dependent on the normal of the object. You should draw a free body diagram for each practice problem if you wish to make it a lot easier.
4th Grade Science
By
4th grade science lesson during which students' observations of crickets in a terrarium support and strengthen the students' original claims to the question regarding body parts and behaviors.
15 - Complex Numbers & the Complex Plane
By Math and Science
Quality Math And Science Videos that feature step-by-step example problems!
Hyperbolas - Conic Sections
By The Organic Chemistry Tutor
This conic sections video tutorial provides a basic introduction into hyperbolas. It explains how to graph hyperbolas and how to find the coordinates of the center, vertices, and foci. In addition, it explains how to write the equations of the asymptotes.