It is impossible to divide a given common Angle or arc (instead of the particular angles or arcs) into three equal parts by using a rule and compasses.
用尺规将一个任意角或弧绝对准确三等分是不可能的。
It is impossible to divide a given common Angle or arc (instead of the particular angles or arcs) into three equal parts by using a rule and compasses.
用尺规将一个任意角或弧绝对准确三等分是不可能的。
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