To calculate the volume of the building block, we need to use the formula for the volume of a triangular prism:

$\text{Volume} = \text{Area of the triangular base} \times \text{Length of the prism}$

Step 1: Find the area of the triangular base.

If the block is a right triangular prism, the area of the triangular base is given by the formula for the area of a right triangle:

$\text{Area of the triangle} = \frac{1}{2} \times \text{base} \times \text{height}$

From the problem, we need the dimensions of the right triangle (the base and height), but since I don't have the diagram, I assume you have this information from the question.

Step 2: Multiply the area of the triangle by the length of the prism to get the volume.

Could you please provide the dimensions of the triangle (base and height) and the length of the prism from the diagram? Then I can calculate the exact volume for you.

Would you like to upload a photo of the diagram to assist with that?