Question 597319
The problem is I have been given only the AREA(90 square feet) and the hypotenuse(18 feet). 
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The fact that they give you the hypotenuse, means it is a right triangle, so we can call one side the altitude (a) and the other side the base (b)
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We know is the two sides are different because it is a scalene triangle, using pythag
 {{{sqrt(a^2+b^2)}}} = 18
and the area
{{{1/2}}}b*a = 90
mult both sides by 2
a * b = 180
b = {{{180/a}}}
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replace b
{{{sqrt(a^2 + (180/a)^2)}}} = 18
square both sides
a^2 + (180/a)^2 = 324
a^2 + (180/a)^2 - 324 = 0
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Plot this equation
{{{ graph( 300, 200, -20, 20, -100, 500, x^2+(180/x)^2-324) }}}
I don't think there is a solution, no x (a) intercept