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Proof Without Words
Author:
Valentyna Pikalova
,
Steve Phelps
Drag the points in the sketch below. What do you notice? What does this prove? How does this prove it?
GeoGebra
New Resources
Average Value of a Function
Billard V5.2 and V6
函數的奇偶性
Prism Drawn in 2-Point Perspective
From Polar to Cartesian Coordinates
Discover Resources
Parallel Lines and Transversals (with angle measures)
Polar Graphs
Proof Triangle Sum Theorem
EXIT SLIP: Geometry 1.3Pt2
Discover Topics
Unit Circle
Difference and Slope
Secant Line or Secant
Kite
Fractions