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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
兩組對邊相等的四邊形
兩位數除以一位數（一）
三位數除以一位數（一）
異分母分數減法
Discover Resources
複合棒形圖: 圖二
極值對稱於反曲點
三角形外心
周界平移
Is it a condition for //gram?
Discover Topics
Fractions
Rotation
Differential Equation
Logarithm
Sphere