450) Which is a better estimate for the volume of a bathroom sink?

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To estimate the volume of a typical bathroom sink, let's consider the general dimensions and shape:

1. **Shape Approximation:** Most bathroom sinks can be approximated as a **cylindrical** or **semi-cylindrical** shape.

2. **Typical Dimensions:**
   - **Diameter:** Approximately 15 inches (38 cm)
   - **Depth:** Approximately 5 inches (13 cm)

3. **Volume Calculation:**
   - **Radius (r):** Half of the diameter, so 19 cm.
   - **Height (h):** 13 cm.

Using the formula for the volume of a cylinder:
   $$
   \text{Volume} = \pi r^2 h = 3.14 \times (19)^2 \times 13 \approx 14,737 \text{ cubic centimeters}
   $$

4. **Convert to Liters:**
   $$
   14,737 \text{ cm}^3 \div 1,000 = 14.7 \text{ liters}
   $$
   
   However, considering that bathroom sinks are not perfect cylinders and have a more bowl-like shape, the actual volume would be somewhat less.

5. **Final Estimate:**
   A **better estimate** for the volume of a typical bathroom sink would be approximately **10 liters**.

**Conclusion:**  
A **10-liter** estimate is a reasonable approximation for the volume of a standard bathroom sink.
A typical bathroom sink has a volume of about 10 liters.

Which is a better estimate for the volume of a bathroom sink?

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