Answer:
11.78 in³
Explanation:
The formula for the volume of a cone is ...
V = 1/3(πr²h)
The cone's radius is half its diameter, so is 1.5 inches. The volume is ...
V = 1/3π(1.5 in)²(5 in) = 3.75π in³ ≈ 11.78 in³
The cone can hold about 11.78 cubic inches of liquid.
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Additional comment
That's about 6.5 fluid ounces.