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Angle Measurements in Triangles

There are 17 videos in this category and 0 videos in 0 subcategories.

Category Videos
Not Right For WatchKnowLearn
Ages: 14 - 18
754 Views:
Incenter and Incircles of a Triangle - Khan Academy
From YouTube, produced by Salman Khan
Sal Khan, of Khan Academy, uses angle bisectors to find the incenter and incircle of a triangle in this eight-minute video.
October 12, 2011 at 09:13 PM
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Not Right For WatchKnowLearn
Ages: 15 - 18
744 Views:
Constructing the Incenter
From YouTube, produced by BrightStorm
This short, one-minute clip shows how to construct the incenter using a compass and straightedge.
October 12, 2011 at 09:17 PM
  • Favorites

Not Right For WatchKnowLearn
Ages: 15 - 18
328 Views:
Review of Triangle Properties - Khan Academy
From YouTube, produced by Salman Khan
In this ten-minute video clip, Sal Khan, of Khan Academy, compares perpendicular bisectors to angle bisectors to medians to altitudes in this review. (09:56)
October 20, 2011 at 10:08 PM
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Not Right For WatchKnowLearn
Ages: 14 - 18
233 Views:
Triangle Inequality Theorem - Khan Academy
From YouTube, produced by Salman Khan
Salman Khan offers his intuition behind the triangle inequality theorem during this six-minute video lesson.
December 24, 2012 at 11:54 AM
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Not Right For WatchKnowLearn
Ages: 11 - 18
93 Views:
Using Angles to Categorize Triangles - Khan Academy
From YouTube, produced by Salman Khan
Salman Khan talks about scalene, isosceles, and equilateral triangles during this five-minute video. He also demonstrates that if you know the measure of two angles in a triangle, you can figure out the measurement of the third angle.
June 27, 2014 at 07:26 PM
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Not Right For WatchKnowLearn
Ages: 12 - 18
1128 Views:
Angle Relationships and Types of Triangles
From YouTube, produced by bullcleo1
The instructor uses computer software to discuss vertical angles, exterior angles, alternate interior angles, etc. The sound quality could be a little better.
March 27, 2010 at 03:46 PM
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Not Right For WatchKnowLearn
Ages: 12 - 18
457 Views:
Finding the Measures of Angles In a Triangle
From YouTube, produced by yourteachermathhelp
The instructor uses a white board to demonstrate how to find the measures of angles of a triangle algebraically. (03:01)
July 8, 2009 at 06:33 AM
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Not Right For WatchKnowLearn
Ages: 10 - 14
1015 Views:
Angle Game, Part 2 - Khan Academy
From YouTube, produced by Sal Khan
The instructor uses an electronic blackboard with different colors.  The angle game is explained and played using a star shape. Using information student knows about various angles they can figure out the sizes of the angle X.  Video can be stopped a... [more]
July 13, 2009 at 06:33 PM
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Not Right For WatchKnowLearn
Ages: 14 - 18
952 Views:
Angles in Triangles
From YouTube
In this TeacherTube video, the instructor shows how to find angle measurements. The writing on the instructors' white board is small, so viewers may want to open the video to 'full screen'. (04:12)
March 27, 2010 at 03:33 PM
  • Favorites

Not Right For WatchKnowLearn
Ages: 14 - 18
366 Views:
45-45-90 Triangle Side Ratios
From YouTube, produced by Sal Khan
In this six-minute video clip, Sal Khan shows the ratios of the sides of a 45-45-90 triangle are 1:1:sqrt (2).
October 5, 2011 at 08:09 PM
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