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GoGeometry Action 38!
Author:
Tim Brzezinski
Creation of this applet was inspired by a
tweet
from
Antonio Gutierrez
.
How can you formally prove what this applet informally illustrates?
GeoGebra
Quick (Silent) Demo
New Resources
"Compressed" Astroid as Envelope
Bottema's Theorem
Rotating Points (Optical Illusion)
Slope of a Straight Line: Run and Rise
Simplifying Radicals: Geometric Thin Slice
Discover Resources
Cylinder - Volume and Surface Area
Theoremau Cylchoedd 2.1.3
Tangents (Students) - CUEBA0062
Action-angle
Rectangular Parallelepiped
Discover Topics
Arithmetic Operations
Logarithmic Functions
Upper and Lower Sum or Riemann Sum
General Quadrilateral
Linear Regression