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Author:
Norm Prokup
GeoGebra
New Resources
Witch of Agnesi - A Classical Construction
Linear Cross Section Exercise
Bottema's Theorem
Play C3 E3 G3 C4_C4
"Compressed" Astroid as Envelope
Discover Resources
tangents2circles
line segment length
Perpendicular Bisector Theorem
Rotation of right triangle on coordinate plane
Heptagon Angle Theorems
Discover Topics
Congruence
Equilateral Triangles
Parallelogram
Root
Sine