Which is longer -- the toilet paper tube's circumference or its length?
| Believe it or not, the tube's circumference is longer than its length. A quick way to prove this is to cut the cylinder apart lengthwise, then open it into a rectangle. One side of this rectangle is the tube's circumference. The other side is the tube's length. A ruler will prove the surprising fact that the circumference is almost a full inch longer than the length! |