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).
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Tim Brzezinski —

 
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ccss  ccss.hsg.co.c.10  circumcenter  circumcircle  common  common-core  core  equilateral-triangle-theorem  equiliteral-triangle  exploration  incenter incircle inscribed-circle problem-set-problem problem-set-problems 펼치기…
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12 – 16
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English
 
 

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