To calculate the surface area, we first need to determine the shape being described by your measurements. It seems we have a rectangle with dimensions of 15 yards in height and 18 yards in width.
The formula for the area \( A \) of a rectangle is:
\[ A = \text{width} \times \text{height} \]
Using the provided dimensions:
\[ A = 18 , \text{yards} \times 15 , \text{yards} = 270 , \text{yards}^2 \]
However, it seems that the question might imply combining this area with something else, possibly a circular area suggested by using \( \pi \). Without more context, I'll assume we need to calculate the area of a rectangle and possibly a circular section.
If we calculate the area of a circle with a radius derived from the dimensions provided, we typically incorporate π. However, no radius is specified here, so there's no additional circular area to include.
Given the options you've listed, the calculated area of 270 square yards does not match any of them, indicating either a misunderstanding of the question or the need for a different calculation approach, possibly geometric properties not clearly stated.
Considering these aspects, please provide clarification or additional details about how the calculations should be adjusted (e.g., if there is a circular part involved).