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GeoGebra
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Cut-The-Knot Action 9!
Author:
Tim Brzezinski
Creation of this applet was inspired by a
tweet
from
Alexander Bogomolny
. Note the rectangles shown are similar to each other.
How can you formally prove what this applet informally illustrates?
GeoGebra
New Resources
Cross Product in 2D and 3D
Introduction
Napoleon's Theorem
Piano. Keyboard.
Supplementary Angles
Discover Resources
Triangle Dilation
concave
day 5 num 1
กราฟของสมการเชิงเส้นสองตัวแปร
Plotting Points (x,y): Quiz
Discover Topics
Scalene Triangles
Secant Line or Secant
Logarithm
Reflection
Piecewise Functions