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在几何证明中，求证题是由边、角、线段等待证要素”构成的。这些特证要素之间的联系又常常是很显性的，给证明增加了难度。越难的证明题，待证要素之间的联系越掩盖得暗密。挖掘待证要素之间的外显性联系是解证几何题的关键。挖掘待证要素间的外显性联系是有规律可循的。将分散在不同图形中的待证要素集中到一个几何图形中，对证明几何题很重要。“集中”通过造角、平移、旋转、点反射等手段来实现。
In the proof of geometry, the question of proof is made up of the elements of awaiting testimony of edges, horns, and lines, and the links between these elements of testimony are often very explicit, which adds to the difficulty of proof. The more the connection between the elements of the card is covered, the more obvious the relationship between elements of the card is hidden.Importing the explicit connection between the elements to be certified is the key to the issue of proofing the geometry.Importing the explicit connection between the elements to be certified is a rule- It is very important to prove the geometric problem that the elements to be certified in different graphs are concentrated in a single geometric figure. “Concentration” is achieved by making angles, panning, rotating and reflecting dots.