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梯形的高
Author:
鍾文欽
Topic:
Trapezoid
GeoGebra
New Resources
兩位數除以一位數(一)
第八周作业
兩位數除以一位數(二)
球体的体积推导
球體建築師
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和三條直線相切的拋物線
加減併式與估算
area 面積2
勾股定理证明演示--分割股边
杨辉三角形
Discover Topics
Triangles
Logic
Geometry
Division
Parabola