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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
Finding Average Rate of Change of a Function
Dodecahedron
Construct a Conic
Parallelograms: Quick Investigation
Blancmange curve (fractal)
Discover Resources
ODE 2
Rotation P3
Slope and y-intercept with Equation
sqrt
Rational - Quadratic/Quadratic
Discover Topics
Sine
Rational Numbers
Statistics
Orthocenter
Perimeter