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Right Triangles

There are 9 videos in this category and 0 videos in 0 subcategories.

Category Videos
Not Right For WatchKnowLearn
Ages: 15 - 18
765 Views:
Circumcenter of a Right Triangle
From YouTube, produced by Sal Khan
Sal Khan, of Khan Academy, shows that the midpoint of the hypotenuse is the circumcenter of a right triangle. (05:42)
October 7, 2011 at 11:32 PM
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Not Right For WatchKnowLearn
Ages: 11 - 17
500 Views:
Hypotenuse Song
From YouTube, produced by Mr. R.
This is a catchy song about the hypotenuse of right triangles. It also has short lesson on the Pythagorean theorem at the end. Some other key vocabulary words include: obtuse, acute, 90 degrees, and Pythagoras.  (03:35).
May 10, 2012 at 11:13 AM
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Not Right For WatchKnowLearn
Ages: 11 - 16
857 Views:
45-45-90 Triangles - Khan Academy
From YouTube, produced by Salman Khan
Video uses an electronic black board with different colored pens.  Introduction to 45-45-90 Triangles, these can also be called right triangles because of the 90 degree measurement.  These triangles are special because if two angles of a triangle are... [more]
July 13, 2009 at 06:35 PM
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Not Right For WatchKnowLearn
Ages: 10 - 14
783 Views:
Intro to 30-60-90 Triangles - Khan Academy
From YouTube, produced by Salman Khan
Video uses an electronic black board with different colored pens.  Narrator reviews a 45-45-90 triangle and how to solve for the hypotenuse using the Pythagorean Theorem.  Then narrator goes on to a 30-60-90 triangle, where one angle is 30 degrees, a... [more]
July 13, 2009 at 06:36 PM
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Not Right For WatchKnowLearn
Ages: 13 - 17
861 Views:
30-60-90 Triangles
From TeacherTube, produced by pbird27
Explains how to determine various sides and angles of a 30-60-90 triangle. Animated text with narration. Grades 7-12. (04:46)
July 18, 2009 at 07:03 AM
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Not Right For WatchKnowLearn
Ages: 15 - 18
706 Views:
Median Centroid Right Triangle Example
From YouTube, produced by Sal Khan
In this nine-minute video clip, Sal Khan, of Khan Academy, offers an example of a median centriod right triangle. For better viewing of the small print, open the video to 'full screen'.
October 17, 2011 at 05:56 PM
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Not Right For WatchKnowLearn
Ages: 14 - 18
622 Views:
Adjacent Right Triangle Problems
From nextvista.org, produced by NextVista.Org
This video shows a drawing of two adjacent right triangles and stresses that using the shared side is key to solving problems involving adjacent right triangles.  ( 3:19)
January 28, 2012 at 06:56 PM
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Not Right For WatchKnowLearn
Ages: 9 - 12
295 Views:
Right Triangles (Interactive)
From pbs.org, produced by MathActive
Distinguish right triangles from other types of triangles. Understand the relationships between interior angles of right triangles and investigate Pythagoras and his theorem.
July 17, 2012 at 03:31 PM
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Not Right For WatchKnowLearn
Ages: 12 - 16
849 Views:
30-60-90 Triangles
From YouTube, produced by YourTeacher.com
Students are asked to solve advanced problems using the 45°-45°-90° and 30°-60°-90° triangle formulas, such as finding the missing parts of a rhombus, a trapezoid, or an equilateral triangle.
August 20, 2009 at 11:12 AM
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