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The trapezoids at right are similar shapes. 

  1. What is the scale factor between shape B and shape A?

    What is the ratio between the pair of sides 50 m and 30 m?

  1. Find the lengths of the missing sides.

    Use this ratio with each other pair of sides with one given length to solve for the variable.

    9 m

    If is 9 m, what would be?

The trapezoids are oriented differently and labeled as follows: Smaller trapezoid labeled, A: larger bottom parallel side, 30 m, right side, 18 m, left side, x.  Larger trapezoid labeled, B, larger bottom parallel side, 50 m, right side, y, left side 15 m.