Two engineers were standing under a flagpole when a woman walked by and asked what they were doing. They said that they needed to measure the height of the pole, but they didn't have a ladder. The woman took a wrench from her purse and removed the nuts at the bottom of the pole and laid it down on the ground. Then, she took out a tape measure, measured the pole, and told them it was 29 feet, 8 inches. After she left, one engineer said to other, "a lot of good that will do us, she gave us the length, but we need the height".
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