In a 45-45 right triangle, the two legs have the same length. in the figure(figure 4) both are given lengths of 1 . what is the length of the hypotenuse of this triangle

The hypotenuse formula is a^2+b^2=c^2
so each side a=1
                     b=1
                         1^2 +1^2=c^2
                          1+1= c^2   so the hypotenuse equals 2