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GoGeometry Action 11!
Author:
Tim Brzezinski
Topic:
Circle
,
Square
Creation of this applet was inspired by a
tweet
from
Antonio Gutierrez
.
How can you formally prove what this applet informally illustrates?
(Note: The
smaller green circle
is also tangent to the two quarter circles.)
GeoGebra
Quick (Silent) Demo
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bearing HK
Rings of circles
探究由平行線和截線所成的角
Droste effect
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Altitude
Jones
Mariah
day 112 (3)
SA - Problem #19
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Definite Integral
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Scatter Plot
Rational Numbers
Arithmetic