Final answer:
The volume of the paperweight which is shaped like a pyramid with a square base is found to be 2.25 cm³, using the formula for the volume of a pyramid with a square base.
Step-by-step explanation:
The student's question involves finding the volume of a pyramid with a square base and given dimensions. The volume of a pyramid can be calculated using the formula V = (1/3) × base area × height, where the base area for a square is side length × side length. In this case, the side of the base of the pyramid is 1.5 centimeters and the height is 3 centimeters.
The base area is 1.5 cm × 1.5 cm = 2.25 cm².
Now, use the formula for the volume of the pyramid:
V = (1/3) × 2.25 cm² × 3 cm
V = (1/3) × 6.75 cm³
V = 2.25 cm³
Therefore, the volume of the paperweight is 2.25 cm³.