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#97 Two regular pentagons sharing vertex
Author:
Doug Kuhlmann
Click on yellow box to see concurrent segments
GeoGebra
New Resources
"Compressed" Astroid as Envelope
Slope of a Straight Line: Run and Rise
Bottema's Theorem
Stairs (Optical Illusion)
Simplifying Radicals: Geometric Thin Slice
Discover Resources
Chapter 6.5 #43-45
A Cube Removed From A Cube
Dodeca II Locked
Finding Ratios of Sides (Right Triangle)
Locus-2
Discover Topics
Percentages
Matrices
Diagrams
Similar Triangles
Rhombus