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AoPS Wiki:Problem of the Day/September 12, 2011: Revision history

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12 September 2011

  • curprev 15:3615:36, 12 September 2011 Negativebplusorminus talk contribs 220 bytes +220 Created page with "In trapezoid ABCD, AD ||BC. <math>\angle A = \angle D = 45\dgg</math>, while <math>\angle B = \angle C =135\dgg</math>. If AB=6 and the area of ABCD is 30, find BC. <noinclude>[..."
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