A cuboid has total surface area of `40m^2` and its lateral surface area is `26 m^2` . Find the area of its base.

Explanation

To find the area of the base of the cuboid given its total surface area and lateral surface area, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Formulas**:
- The total surface area (TSA) of a cuboid is given by the formula:
\[
\text{TSA} = 2(LB + BH + LH)
...