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Angles in the Circumference and the Centre
Author:
Lam Kam Hung
Topic:
Quadrilaterals
Angles at the Circumference
GeoGebra
New Resources
四邊形的特性
画直线等分三角形的面积
【案例】2018年全国1卷理科12题
三位數除以一位數（一）
兩位數除以一位數（二）
Discover Resources
trigonometry3
test
circle: line from centre
切線 (The Tangent Line)
奔马
Discover Topics
Root
Scatter Plot
Tangent Line or Tangent
Triangles
Statistics