Answer:
B. 196 m^3
Explanation:
The volume of a square pyramid can be calculated using the formula:
Volume = (1/3) * Base Area * Height
In this case, the base is a square with side lengths of 7 meters, so its area is:
Base Area = side length^2 = 7^2 = 49 square meters
Given the height is 12 meters, we can now calculate the volume:
Volume = (1/3) * Base Area * Height
Volume = (1/3) * 49 * 12
Volume = 196 m^3
The correct answer is:
B. 196 m^3