SOLUTION: Q a straight length of wire is 20 cm long It is bent at right angles to form the two shorter sides of a right angled triangle.If the triangle's area is 30 cm^2, find: 1) the lengt

Algebra ->  Quadratic Equations and Parabolas -> SOLUTION: Q a straight length of wire is 20 cm long It is bent at right angles to form the two shorter sides of a right angled triangle.If the triangle's area is 30 cm^2, find: 1) the lengt      Log On


   



Question 1024098: Q a straight length of wire is 20 cm long It is bent at right angles to form the two shorter sides of a right angled triangle.If the triangle's area is 30 cm^2, find:
1) the length of the hypotenuse 2) the triangles's perimeter.

Answer by josgarithmetic(39620) About Me  (Show Source):
You can put this solution on YOUR website!
The legs, x and y.
x%2By=20

%281%2F2%29xy=30

Solve the system system%28xy=60%2Cx%2By=20%29.

Start this way:
y=20-x
-
x%2820-x%29=60
20x-x%5E2=60
continue....