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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
Poorly Drawn Parallelograms 3
Exploring the Derivative of a Quadratic Function
Average Rate of Change: Graph a Function (2)
Variation Theory Parallelogram Proofs
alg2_05_05_01_slider_practice_flvs
Discover Resources
Tangents and secants
perpendicular bisector circumcenter
angulos congruentes
Inscribed Right Triangle
Equation of a horizontal line
Discover Topics
Mode
Logic
Tangent Function
Normal Distribution
Arithmetic