Euclid Book 1 - Proposition 24
Two triangles, two sides same, angles different

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To be proved: If two triangles have two sides equal to two sides respectively, but have one of the angles contained by the equal straight lines greater than the other, then they also have the base greater than the base.

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There are triangles ABC and DEF with lines AB = DE, AC = DF, angle BAC > EDF

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© Jo Edkins 2010 - Return to Euclid index