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Radii ?
Author:
Judah L Schwartz
How large are the radii of the three mutually tangent circles?
What questions could / would you ask your students ?
GeoGebra
Can this diagram be constructed using only a straightedge and compass? If so, how? If not, why not?
New Resources
Exploring the Derivative of an Exponential Function
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alg2_05_05_01_applet_exp_flvs
Monkey typing Shakespeare's complete works
Discover Resources
解析幾何:線對稱
Poisson
Double Ferris Wheel Applet
stretch
Triangelns vinkelsumma
Discover Topics
Equilateral Triangles
Cube
Secant Line or Secant
Percentages
Calculus