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Trapezoids and the Harmonic Mean
Author:
Norm Prokup
Topic:
Trapezoid
GeoGebra
New Resources
Stairs (Optical Illusion)
Parallel or Not? (V2)
cylinder net slider
Bottema's Theorem
van Aubel's Theorem
Discover Resources
activity 8: rotations arrows AC
Testing
Angles at a point.
Euler Line
Volume of Right Prisms: IM 7.7.12
Discover Topics
Upper and Lower Sum or Riemann Sum
Calculus
Vectors 3D (Three-Dimensional)
Similar Triangles
Exponential Functions