The diagonal of a square is 72 cm. Find the side of the square.​

The diagonal of a square of side 8 cm is

Length of the diagonal of a square is 12 cm. Find the length of each side of the square.

Ina square one diagonal is 16 cm .Find the side of the square

The length of the diagonal of a square and that of the side of another square are both 10 cm. What is the ratio of the area of the first square to that of the second ?