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day 142
作者：
dane.ehlert
GeoGebra
最新資源
seo tool
WC 2018
Untitled
Measuring Cup
Loyd's Two-Greek-Crosses-to-a-Square Dissection
探索資源
GeoGebra Test
fracone
Triangle
test page - onenote
Relationship between Radii and Tangents
two clocks in k/n time !
探索主題
正三角形
線性規劃或線性最佳化
正切線或正切
算術
角錐