| If your walls are meeting at true right angles so that the room is a perfect square or rectangle, you can omit this step. |
| Let's start with a rectangle, and then remove a square from it with the same side length as the shortest side of the rectangle. |
| Working together, we used a red crayon to divide the upper right rectangle into eight smaller rectangles. |
| Figure 4 shows the spacetime cylinder slit open along Albert's world line and flattened to a rectangle. |
| The large rectangle ABDF is the same shape as CDFH, but is phi times as large. |
| For fashion, the so-called quadrilatero d' oro, or golden rectangle, is the magnet. |
