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Lines, Line Segments, and Rays - 08/26/2011
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Measuring Angles - 08/26/2011
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2003 AIME II Problem 7 - 08/26/2011
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Rhombus Diagonals - 08/26/2011
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Triangle Medians and Centroids (2D Proof) - 08/26/2011
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Triangle Medians and Centroids - 08/26/2011
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Area of Diagonal Generated Triangles of Rectangle are Equal - 08/26/2011
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Right Triangles Inscribed in Circles (Proof) - 08/26/2011
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Area of Inscribed Equilateral Triangle (some basic trig used) - 08/26/2011
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An inscribed angle is half of a central angle that subtends the same arc - 08/26/2011
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Part 2 of the Proof of Heron's Formula - 08/26/2011
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Part 1 of Proof of Heron's Formula - 08/26/2011
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Heron's Formula - 08/26/2011
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Cylinder Volume and Surface Area - 08/26/2011
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Solid Geometry Volume - 08/26/2011
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30-60-90 Triangles II - 08/26/2011
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Intro to 30-60-90 Triangles - 08/26/2011
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45-45-90 Triangles - 08/26/2011
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Pythagorean Theorem II - 08/26/2011
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The Pythagorean Theorem - 08/26/2011
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