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梯形
Author:
kmskms2018
Topic:
Trapezoid
GeoGebra
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【案例】2018年全国1卷理科12题
三位數除以一位數（二）
判斷球體
兩組對邊相等和有直角的四邊形
三位數除以一位數（一）
Discover Resources
Rotation 旋轉變換
阿帕契直升機
正弦定理的验证
任意凸多边形的滚动
垂直線的斜率
Discover Topics
Confidence Interval
Optimization Problems
Congruence
Statistics
Right Triangles