To find the volume of a right rectangular pyramid, you can use the formula:
\[ V = \frac{1}{3} \times \text{Base Area} \times \text{Height} \]
The base of the pyramid is a rectangle, so the area \( A \) of the base can be calculated using the formula:
\[ \text{Base Area} = \text{length} \times \text{width} \]
Given:
- Length \( l = 26 \) m
- Width \( w = 31 \) m
- Height \( h = 35 \) m
First, calculate the base area:
\[ \text{Base Area} = 26 , \text{m} \times 31 , \text{m} = 806 , \text{m}^2 \]
Now, substitute the base area and height into the volume formula:
\[ V = \frac{1}{3} \times 806 , \text{m}^2 \times 35 , \text{m} \]
Calculating:
\[ V = \frac{1}{3} \times 806 \times 35 = \frac{28,210}{3} , \text{m}^3 \approx 9,403.33 , \text{m}^3 \]
Thus, the volume of the pyramid is:
\[ \boxed{9,403.33 , \text{m}^3} \]