Final answer:
The height of the triangular cross-section cannot be determined with the information given.
Step-by-step explanation:
To determine the height of the triangular cross-section of the prism, we first need to find the volume of the prism. The formula for the volume of a prism is V = Ah, where A is the area of the base and h is the height. Since the prism is triangular, the base is a triangle.
To find the area of the base, we need to know the length of the base and the height of the triangle. Unfortunately, the question does not provide this information. Therefore, we cannot calculate the height of the triangular cross-section of the prism based on the given information.
So, the answer to the question is D. The height of the triangular cross-section cannot be determined with the information given.