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High School Mathematics
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Demonstrations 181  200 of 1100
Euclid, Book 3, Proposition 22
Drawing an Oval with a String and Three Nails
Difference Formula for Cosine
Reflection Matrix in 2D
Angle Bisectors of Two Intersecting Lines
Eratosthenes's Measure of the Earth's Circumference
Graph and Contour Plots of Functions of Two Variables
Derivatives of the Sum of Two Sines
The Wire Problem
How Many Triangles Are There?
Surface Area of a Solid of Revolution
Vector Projection
Frequency Response of an LCR Circuit
Plot of a Geometric Sequence and Its Partial Sums
Wrapping the Number Line around the Unit Circle
Chip Stack Game
Strips of Equal Width on a Sphere Have Equal Surface Areas
The Area between Two Circles
Derivatives of Sine
Directional Derivatives and the Gradient
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