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Parallelogram F C D E is shown. Sides D C and F E are parallel, and sides F C and E D are parallel. The length of C D is 4 r + 19, the length of D E is 8 r + 3, and the length of F C is 9 r minus 6.

What is the value of r?

What is the length of segment EF?

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  1. 29 May, 23:48
    0
    r=9

    EF = 55
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