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![]() I need help with a math problem that has to do with Special Parts of Triangles & Congruent Triangles in Geometry. The triangle for the problem is in this link: http://i12.tinypic.com/5ykkfas.jpgDE=x+6 BC=7x-6 BC=____I know BC=19.2 I just don't know how they got that and how to work out the problem!Please help fast, thanks.
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