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Cut-the-Knot Action 15!
Author:
Tim Brzezinski
Topic:
Circumcircle or Circumscribed Circle
,
Incircle or Inscribed Circle
Creation of this applet was inspired by a
tweet
from
Alexander Bogomolny
.
How can we formally prove THIS to be true?
GeoGebra
Quick (Silent) Demo
New Resources
探究由平行線和截線所成的角
Construct a Conic
Parallelograms: Quick Investigation
Icosahedron1
alg2_05_05_01_applet_exp_flvs
Discover Resources
Tangent, Derivative and Second Derivative to a cubic
test149
circumcenter-tri
Ashna 3
Weather Modeling Station Day 2
Discover Topics
Standard Deviation
Subtraction
Upper and Lower Sum or Riemann Sum
Cone
Logic