SOLUTION: the hypotenuse of a right triangle is 15 inches. one of the legs is 3 inches more than the other. find the lengths of the two legs

Algebra ->  Triangles -> SOLUTION: the hypotenuse of a right triangle is 15 inches. one of the legs is 3 inches more than the other. find the lengths of the two legs      Log On


   



Question 116403:
the hypotenuse of a right triangle is 15 inches. one of the legs is 3 inches more than the other. find the lengths of the two legs

Answer by checkley71(8403) About Me  (Show Source):
You can put this solution on YOUR website!
A^2+B^2=C^2
X^2+(X+3)^2=15^2
X^2+X^2+6X+9=225
2X^2+6X+9-225=0
2X^2+6X-216=0
2(X^2+3X-108)=0
2(X+12)(X-9)=0
X-9=0
X=9 ANSWER FOR 1 SIDE
9*2+B^2=225
81+B^2=225
B^2=225-81
B^2=144
B=SQRT144
B=12 ANSWER FOR THE OTHER SIDE.