SOLUTION: given a square or rectangle what is the formular for calculating the diagonal size

Algebra ->  Triangles -> SOLUTION: given a square or rectangle what is the formular for calculating the diagonal size      Log On


   

Question 17583: given a square or rectangle what is the formular for calculating the diagonal size
Answer by pwac(253) About Me  (Show Source):
You can put this solution on YOUR website!
you would use Pythagorus theorem:
square on hypotenuse=sum of squares of other two sides.
In your case diagonal is hypotenuse.
so if (d)is diagonal and x and y the two sides it connects
d%5E2=x%5E2%2By%5E2
addx%5E2 andy%5E2
then findsqrt%28d%5E2%29
Pete