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Equilateral Triangle + Semicircle = ? (GoGeometry Action 88)
作者:
Tim Brzezinski
主題:
圓
,
正三角形
Creation of this applet was inspired by a
tweet
from
Antonio Gutierrez
(GoGeometry).
How can we formally prove what this applet informally illustrates?
GeoGebra
Quick (Silent) Demo
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