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Problem 7 (2009 AMC 8)

AMC 8Easy

From module Triangle Area Formulas

Problem

The triangular plot of ACDACD lies between Aspen Road, Brown Road and a railroad. Main Street runs east and west, and the railroad runs north and south. The numbers in the diagram indicate distances in miles. The width of the railroad track can be ignored. How many square miles are in the plot of land ACDACD? [See figure in original PDF]

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