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Introduce tangent ratio
Author:
VCChung
GeoGebra
New Resources
【案例】2018年全国1卷理科12题
柱體建築師
兩位數除以一位數（一）
畫出對稱圖形
算柱 (兩位數)
Discover Resources
根據百分率找數量（二）: 例2
圖C
Opp angles cyclic quad
美图欣赏-线绳艺术
翰林數學_2下_CH3-1_多邊形的內角和
Discover Topics
Circumcircle or Circumscribed Circle
Statistical Characteristics
Pythagoras or Pythagorean Theorem
Hypothesis Testing
Perimeter