Theorem.
Parallel carry is movement.
Evidence.
Suppose there are two arbitrary points A (x1; y1) and B (x2; y2). Then, with parallel translation, we get the points A` (x1 + a; y2 + b) and B` (x2 + a; y2 + b).
![Parallel Carry Property](/th/25/blogs/id3394/0_1.jpg)
As can be seen AB = A'B ', and therefore parallel transfer is a movement. The theorem is proved. |
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Planometry
Terms: Planometry