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

Box Problem
Area of a Triangle: Intuitive Discovery
Mean, Median, Mode, Range: Quick Check
Open Middle: Triangle Area Problem (V2)
Area of a Circle

Discover Resources

Area som andragradsfunktion
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Start, 45 degree angle
三角函数图象
Slope of the Line Tangent to the Sine Curve

Discover Topics

Square
Secant Line or Secant
Logarithmic Functions
Centroid or Barycenter
Pyramid