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What Shapes?
Author:
John Ulbright
Topic:
Geometry
This uses the simple definition of a polygon. Note that you can "trick" this by overlapping points in certain ways, so keep an eye on what conclusions students are making!
GeoGebra
New Resources
Simplifying Radicals: Geometric Thin Slice
Bottema's Theorem
Simplifying Radicals: Geometric Thin Slice
Linear Cross Section Exercise
"Compressed" Astroid as Envelope
Discover Resources
Kompozicija izometrija
Elastic Ruler
Parabolograph
hyperbolic paraboloid
math171_2_6_cone_related_rate
Discover Topics
Median Line
Random Experiments
Poisson Distribution
Sine
Random Variables