what is the side length of square C if the three squares form a right triangle?

Since the area of square A is 97 square inches, then it follows that the sides of A are:
[tex]a=\sqrt[]{97}[/tex]And since the area of square B is 24 square inches, then it follows that the sides of B are:
[tex]b=\sqrt[]{24}[/tex]Then, we can note from the image that the side of C is the hypothenuse of a triangle with it's sides equal to a side of A and a side of B, then for the Pythagoras theorem we have that:
[tex]c^2=(\sqrt[]{97})^2+(\sqrt[]{24})^2[/tex]then
[tex]c=\sqrt[]{121}[/tex]where c is the length of the sides of C.
then the area of the triangle C is:
[tex]\text{AreaC}=(\sqrt[]{121})^2=121\text{ square inches}[/tex]