Angles of Triangles and Parallel Lines

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I introduce the theorem that state the interior sum of the angles of a triangle add up to 180 degrees and show how this is true with parallel lines. The second theorem I cover explains how an exterior angle of a triangle is equal to the sum of the 2 interior remote angles.
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thank you for your efforts sir. i recommended your videos to my cousins :) so you get more views

maximillianortego
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This video was helpful to me and I hope that more of your videos will help me in the future!

darkomew
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Professor RobBob, thank you for an excellent analysis of Angles of Triangles and Parallel Lines. Examples really help with understanding the material and the theory that comes with it. In example 4(at the 19.43 minutes mark), there is a degree symbol missing on the measure of angle Z. Please correct this error in the video.

georgesadler
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THANK YOU! I appreciate that very much:)

profrobbob
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That's great...keep watching and sharing and be sure to remind viewers to "SUBSCRIBE" to support and help channels groW!

profrobbob
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