SOLUTION: The sum of the lengths of the two legs of a right triangle is 7 inches. If the length of the hypotenuse is 5 inches, find the length of each leg.

Algebra ->  Pythagorean-theorem -> SOLUTION: The sum of the lengths of the two legs of a right triangle is 7 inches. If the length of the hypotenuse is 5 inches, find the length of each leg.      Log On


   



Question 679032: The sum of the lengths of the two legs of a right triangle is 7 inches. If the length of the hypotenuse is 5 inches, find the length of each leg.
Answer by jsmallt9(3758) About Me  (Show Source):
You can put this solution on YOUR website!
First of all, this problem has nothing to do with Trigonometry. You are more likely to get a faster response to your posts when you post in an appropriate category.

This problem can be solved with...
  • Two variables:
    Let x = one leg
    Let y = the other leg
    Then
    x + y = 7
    And the three sides must fit the Pythagorean equation:
    x%5E2%2By%5E2+=+5%5E2
    Now just solve this system of equations. (I suggest the Substitution Method.
  • One variable:
    Let x = one leg
    Then the other leg is: 7-x
    And the equation we will use is the Pythagorean equation:
    x%5E2+%2B+%287-x%29%5E2+=+5%5E2
    Now just simplify and solve.