2. A. Ineffective Ways to Measure

Koch Curve Length Paradox

When we speak of the distance between two points of the Koch curve, we mean the distance measured when traveling along the Koch curve between these points.
We have seen that the distance between A and E is infinite. What is the distance between A and B?
Suppose the distance between A to B is some finite number, say L.
Note the part of the Koch curve between A and B is congruent to the part between B and C, to the part between C and D, and to the part between D and E.
Consequently, if the distance between A and B is L, then the distance between A and E is 4L.
This contradicts our observation that the length of the Koch curve is infinite.
Consequently, the distance between A and B is infinite.

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