GeoGebra
GeoGebra
Home
News Feed
Resources
Profile
People
Classroom
App Downloads
Perpendicular Lines Geometrical
Author:
Lee Ka Shun
Move point A or point B. The right angle between the red line and blue line are fixed. Notice that relationship between the two slopes.
GeoGebra
New Resources
Ball Structure
If Pythagoras Had Regular Heptagons...
Minimalist Chair
Building Similar Triangles
x2x: Spindle
Discover Resources
Fitting the arch
Auxiliary lines of circles
DC Commutator
Side Angle Side
Exact Value Practice
Discover Topics
Means
General Quadrilateral
Arithmetic
Limits
Ellipse