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Classifying shapes by line and angle types: 2-4-5 triangle #98987

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davidmarqua opened this issue Oct 28, 2013 · 0 comments

davidmarqua commented Oct 28, 2013

https://www.khanacademy.org/task/2333998433

If BC = AE = 5 units & BC || AE => EC = 5 units. However EC = 20^(1/2) units, so AE is not parallel to BC.

https://ka-perseus-graphie.s3.amazonaws.com/8037be89852b1d59afbf6ea45e9d72c8640c7e6b.png

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