Cut-the-Knot Action 15!

Dynamic and Modifiable Illustration of a Relationship that Holds True within ANY Equilateral Triangle. Credit: Alexander Bogomolny (Cut-the-Knot.org).

 

Tim Brzezinski

 
適合年齡
12 – 16
語言
English
 
 
瀏覽次數
15920
聯繫資源作者
 
 
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