Euler Line Surprise! = GoGeometry Action 54

Author:: Tim Brzezinski

Topic:: Orthocenter

Creation of this applet was inspired by a post from Antonio Gutierrez (GoGeometry). How can we formally prove what this applet informally illustrates?

New Resources

Transformations of Quadratics
任意四边形的密铺
圆内6个大小不等的小圆
Basic Trig Graphing Open Middle Problem
Compound Interest: Writing Function Models

Discover Resources

CCGPS AG 1.4.1 Example 2
Symétrie Centrale
Sine Graph
תכנית אימון על פי גרף רציף
Publicity: Mac Do (Elias, DE)

Discover Topics

Tangent Line or Tangent
Probability
Poisson Distribution
Integers
Conic Sections