SOLUTION: The longer leg of a right angle triangle is 7cm longer than the shorter leg.the hypotenuse is 9cm longer than than the shorter leg. Find the lengths of the triangle

Algebra ->  Pythagorean-theorem -> SOLUTION: The longer leg of a right angle triangle is 7cm longer than the shorter leg.the hypotenuse is 9cm longer than than the shorter leg. Find the lengths of the triangle      Log On


   



Question 879342: The longer leg of a right angle triangle is 7cm longer than the shorter leg.the hypotenuse is 9cm longer than than the shorter leg. Find the lengths of the triangle
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
Applying the Pythagorean theorem
x^2 + (x+7)^2 = (x+9)^2 |Expand
2x^2 + 14x + 49 = x^2 + 18x + 81
x^2 - 4x -32 = 0
(x - 8)(x+4) = 0, x = 8 (negative solution tossed out for unit measure)
shorter leg : 8
longer leg: 15
Hypotenuse: 17