The rectangular prism below has a length of 9 ft., a width of 6 ft., and a height of 3 ft. You want to find the diagonal length from the bottom corner of the prism to the top corner. Which equation would help you with the first step of finding the length of the base of the prism

The equation that would help you find the length of the base of the prism is the Pythagorean theorem, which is expressed as:

a^2 + b^2 = c^2

In this case, a and b represent the dimensions of the base of the prism (length and width), and c represents the diagonal length from the bottom corner to the top corner.