 Date: 2013-09-03 14:21:05Triangle geometry Angle Euclidean plane geometry Equations Pythagorean theorem Triangle Right triangle Area Special right triangles Geometry Triangles Euclidean geometry | | This brainteaser was written by Derrick Niederman. The triangle below lies on a flat surface and is pushed at the top vertex. The length of the congruent sides does not change, but tAdd to Reading ListSource URL: illuminations.nctm.orgDownload Document from Source Website File Size: 240,04 KBShare Document on Facebook
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