摘要
研究了应用笛沙格定理时寻找透视三点形的3种途径即根据问题的条件或结论直接找出对应顶点;调整对应顶点;构造透视三点形.
Gave three methods of seeking for the perspective three point shapes when Desargue＇s theorem is applied.These methods are finding the corresponding apex directly according to the question condition or the conclusion,adjusting correspondence apex,constructing perspective three shapes.
出处
《高师理科学刊》
2010年第5期86-88,共3页
Journal of Science of Teachers＇College and University
关键词
透视三点形
透视轴
透视中心
perspective three point shape
perspective axis
perspective centre
