Hi,

 one leg is 9ft and the other leg is 1 ft less than the hypotenuse

 Using the Pythagorean Theorem, This Info Sets UP...

 (a-1)^2 + 9^2 = a^2

 

  

Answer by MathLover1(20850)   (Show Source): You can put this solution on YOUR website!
 let the hypotenuse of a right triangle be 



and one leg  which is 



and the other leg  is  less than the hypotenuse .



so, we have:







...=>



use Pythagoras theorem:



...substitute  and  with given values































now find 

















check:



.....when ,,



















 

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