Question 20
The figure is made up of two squares. The difference in their areas is $56\text{ cm}^2$. Find the side length of the bigger square.
The supplied figure has no length labels. No scale, integer-length condition or additional side-length relation is stated in the source or shared lesson context. Use only the stated area difference; responses will be reviewed manually rather than by a numerical answer key.

The supplied figure has no length labels. No scale, integer-length condition or additional side-length relation is stated in the source or shared lesson context. Use only the stated area difference; responses will be reviewed manually rather than by a numerical answer key.
