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梯形(面積)
Author:
WYC
Topic:
Area
,
Trapezoid
GeoGebra
New Resources
兩位數除以一位數（一）
第八周作业
【案例】2018年全国1卷理科12题
兩組對邊相等和有直角的四邊形
兩組對邊相等的四邊形
Discover Resources
三角形與邊上一點求正三角形
優良作品7(孟倫)
相似三角形
transformation_enlarge/reduction
旋轉圓弧
Discover Topics
Solids or 3D Shapes
Equilateral Triangles
Vectors 2D (Two-Dimensional)
Subtraction
Definite Integral