Find the surface area using a formula S. A. =L.A.+B 6 and 5 are the numbers

To find the surface area using the given formula, we need to know the values of L, A, and B. However, you have only mentioned that 6 and 5 are the numbers.

If L, A, and B represent the lengths of different sides or dimensions, please specify the corresponding values for L, A, and B.