Question

Find all sides of a right triangle whose perimeter is equal to 60 cm and its area is equal to 150 square cm.
A.x + y + H = 60 : perimeter , x, y and H be the two legs and the hypotenuse of the right triangle
B.(1/2)xy = 150 : area
C.x2 + y2 = H2: Pythagora's theorem.
D.3 equations with 3 unknowns.
E.(x + y)2 - 2xy = H2 : completing the square in the third equation.
F.x + y = 60 - H : express x + y using the first equation and use the second equation to find xy = 300 and substitute in equation 5.
G.(60 - H)2 - 600 = H2 : one equation with one unknown.

Answer 1

2/9 the of it (x + y)+