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<br />Exhibit A <br />Example: Non-Uniform Rectangular <br />Length line (AB) = 65 ft <br />Distance between offset lines is 13 ft apart <br />Length of each offset line: <br />C = 20 ft <br />D = 10 ft <br />E = 15 ft <br />F = 20 ft <br />G = 25 ft <br />H = 20 ft <br />Average length of <br />offset lines <br />=(C + D + E + F + G + H) <br />(Number of offset lines) <br />= (20 + 10 + 15 + 20 + 25 + 20) / 6 <br />= 18.3 ft <br />Total Area = (Length line) <br />x (Average length of offset lines) <br />= 65 ft x 18.3 ft <br />= 1189.5 ft2 <br />Irregular Rhombus or Widening Rectangular <br />A fast way to measure irregular rhombi is shown in the example below. Stake one end of the <br />measuring tape at point (A, B); measure line d and then line B. Without removing the stake <br />measure line c and then line A. Using those four measurements you will be able to find line f and <br />line e. The areas of triangle (fd), triangle (ce), and rectangle (cd) can now be calculated.