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7-85.

In the diagram at right, ~ .  

  1. Draw each triangle separately on your paper. Be sure to include all measurements in your diagrams.

  1. Calculate the length of .

    Set up a proportion to solve for .

Triangle A, D, E. Line B, C is drawn parallel to D, E inside the triangle. Line segment B, C is 10. Side A, B is 14, side B, D is 8.