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根据包含关系求参数例3
Author:
吕胜
GeoGebra
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活动三：应用性质
撒针估算面积实验
双心四边形
第八周作业2
百分數及其應用
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soccer(final)
軌跡五、六︰移動點與兩直線保持相等距離(平行線/角平分線)
Hyperbolic
congruent (SSA,RHS)
抛物线第一定义
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Constructions
Arithmetic
Linear Equations
Perimeter
Special Points