How tall is 8.75 x 5.75 x 1.25?

To find the height of an object with dimensions 8.75 x 5.75 x 1.25, you would typically interpret these as length, width, and height, respectively. Therefore, the height is 1.25 units. If you're looking for the volume, you would multiply the three dimensions together, resulting in a volume of 62.578125 cubic units.