Hi,

The height of a triangle is 6 m more than twice the length of the base.

The area of the triangle is 28 m^2 = L*H

  x(2x+6) =28

  2x^2 + 6x -28 = 0

   x^2 + 3x -14 = 0

 

   = (-3 +8.06)/2 = 2.5 rounded to 1 decimal point (throwing out neg solution for unit measure

length = 2.5m, height is 11m 

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