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4:55
Khan Academy
Sal Khan
Worked example: Triangle angles (intersecting lines)
Learn how to find unknown angles in triangles and intersecting lines. We use concepts like supplementary angles (angles that add up to 180°), vertical angles (opposite angles made by two crossing lines), and exterior angles (angles outside a triangle). There are lots of ways to think about this problem.
Sep 23, 2011
Geometry for Kids
Geometry for Kids - Angles, Triangles, Circumference, Polygons, Number Pi - Compilation Video - Videos For Kids
kidvideo.org
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Kid Friendly Videos That Teach Geometry
luckylittlelearners.com
Dec 26, 2016
0:59
Years 3 to 8 can nail the basics of geometry with our colourful videos and exercises. Check out our handy classroom resources here: https://www.abc.net.au/education/digibooks/geometry-basics/104707264 #GeometryBasics #geometry #education #teaching #maths #mathematics | ABC Education
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