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Mathematics 11 Online
OpenStudy (anonymous):

The area of a trapezoid is found using the formula 2003-05-05-00-00_files/i0050000.jpg, where 2003-05-05-00-00_files/i0050001.jpg and 2003-05-05-00-00_files/i0050002.jpg are the parallel sides of the trapezoid and h is the height. The area of a trapezoid is 18 2003-05-05-00-00_files/i0050003.jpg, with bases 5 km and 7 km. What is the height, in kilometers? A. 3 B. 18 C. 1 D. 4

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