1. This theorem is a fundamental concept in Euclidean geometry.
这个定理是欧几里得几何学中的一个基本概念。
2. The Euclidean distance between two points in the coordinate plane can be calculated using the Pythagorean theorem.
在坐标平面上,可以使用勾股定理计算两点之间的欧几里得距离。
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