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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
Taylor Polynomial
Poorly Drawn Parallelograms
Variation Theory Parallelogram Proofs
Dissections by Guillermo Bautista
Explore the invariant lines of matrix {{-2,5},{6,-9}}
Discover Resources
Forum_f=20&t=38618_A_FunctionSimplify
Squaring iteration (complex)
Self Assessment : Graphs of Quadratic Functions in Vertex Form +/- (x-h)^2 +k
Intersecting Chords
Morley's trisector theorem
Discover Topics
Derivative
Indefinite Integral
Step Functions
Curve Sketching
Scalene Triangles