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三角形內心_不完美版
Author:
lihsing.zen
Topic:
Centroid or Barycenter
GeoGebra
New Resources
【案例】2018年全国1卷理科12题
判斷球體
四邊形的特性
兩位數除以一位數（一）
兩位數除以一位數（二）
Discover Resources
落在區域內的星星
test
[問題] a² + b² = 1, (c-4)² + (d-2)² = 5，求 ad - bc 最大值？
test03
miao
Discover Topics
Scalene Triangles
Pythagoras or Pythagorean Theorem
Arithmetic
Hypothesis Testing
Vectors 3D (Three-Dimensional)