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高考椭圆题的动态演示1.许兴华数学
Author:
许兴华数学
Topic:
Ellipse
GeoGebra
New Resources
拼砌四邊形
四邊形的特性
四邉形 (四年級) 教師版
兩組對邊相等和有直角的四邊形
異分母分數減法
Discover Resources
fold and unflod the cone with geogebra5.0
「相似三角形」任务3
[問題] a² + b² = 1, (c-4)² + (d-2)² = 5,求 ad - bc 最大值?
Brahmagupta 四邊形的構造方法
圓周角與圓心角之度數關係臆測(圓心在圓周角的內部)
Discover Topics
Incircle or Inscribed Circle
Line Segment
Polygons
Pythagoras or Pythagorean Theorem
Sphere