Weighted sum of distances
The point which minimizes weighted sum of distances to triangle's vertices
Parallelogram area
Fermat 2 ways
incirclecontact
Incircle Point of Contact
Two ways of finding the Fermat Point
Minimum Perimeter Inscribed Triangle
Regiomontanus Problem
Crank Slider
gear related to belt
Gear pair
Paucellier's linkage
Watt's Linkage
Tchebychev's Straight Line Linkage
A Median Theorem
Four Bar Linkage
Four Bar linkage with line
four bar coupler curve
A triangle from medians
Coordinate Clock
Abacus Corrected
crank slider locus
Maximum Area Triangle
Projectile High Point
September Problem