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Ratio of angles at the centre and the length of the arcs.
Autor:
Lam Kam Hung
The ratio of the angles at the centre is the same as the length of arc but not the same as the ratio of the chord.
GeoGebra
Nous materials
圓的基本性質
三角函数 的副本
百分數及其應用
探究三角形的全等條件
圓的切線方程
Descobriu materials
七巧板
中位线的副本
旋轉長方形
圓周公式應用題2的副本
测试
Descobriu Temes
Equacions quadràtiques
Paràbola
Lògica
Semblança
Suma