List of shapes with known packing constant

The packing constant (or packing density) is a measure of how efficiently a shape can fill space when repeated. Different shapes have various packing constants based on how they can be arranged. Here is a list of some shapes with known packing constants: 1. **Circle**: - Packing Constant: \(\frac{\pi}{\sqrt{12}} \approx 0.9069\) for hexagonal packing 2.