Use the formula to determine the surface area of a right rectangular prism where each edge length measures 12.75 cm.

The surface area of a right rectangular prism can be calculated using the formula:

Surface Area = 2lw + 2lh + 2wh

where l is the length, w is the width, and h is the height of the prism.

In this case, the edge length measures 12.75 cm for all three dimensions.

So, the length (l) = 12.75 cm, the width (w) = 12.75 cm, and the height (h) = 12.75 cm.

Plugging these values into the formula:

Surface Area = 2 * 12.75 * 12.75 + 2 * 12.75 * 12.75 + 2 * 12.75 * 12.75

Surface Area = 2 * 162.5625 + 2 * 162.5625 + 2 * 162.5625

Surface Area = 325.125 + 325.125 + 325.125

Surface Area = 975.375 cm²

Therefore, the surface area of the right rectangular prism with each edge length measuring 12.75 cm is 975.375 cm².