Proof Without Words

Author:Steve Phelps

Drag the points. Drag the slider. What do you notice? What does it prove? How does it prove? Sincere thanks to Luis Guillermo de la Rosa Jiménez http://www.geogebratube.org/luisgdelarosa

New Resources

The Coordinate Plane (Cartesian Plane)
apec
Perimeter of a Rectangle with Unknown Sides
Angle Bisector: Quick Warm Up Questions
Tangent Plane to a Sphere

Discover Resources

Quadrilateral Interior & Exterior Angle Sum Theorems (V2)
CubicTangentArea
Projectile: Equation of trajectory
Graphs to Equations
Jessica Graph

Discover Topics

Numbers
Fractions
Hypothesis Testing
Step Functions
Vectors 3D (Three-Dimensional)