Question 1115834
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You are given  B = 3*H.     ("the base of a triangle is three times the height")


You also know that the area of a triangle is  {{{(1/2)*B*H}}}.


It gives you an equation


{{{(1/2)*(3H)*H}}} = 54  ====>


{{{3H^2}}} = 54*2  ====>


{{{H^2}}} = {{{(54*2)/3}}} = 36  ====>  H = {{{sqrt(36)}}} = 6.


From this point, can you complete the solution on your own ?
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