Cut-the-Knot-Action (3)!

Dynamic & Modifiable Illustration of a Problem posed by Alexander Bogomolny (Cut-the-Knot.org).

 

Tim Brzezinski

 
適合年齡
12 – 16
語言
English
 
 
瀏覽次數
27891
聯繫資源作者
 
 
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