Centre of a circle passing through two fixed points
A circle through two points: what is the locus of the centre of the circle?
Move the point C; what happens to the centre of the circle?
Incenter and Excenters
Introduction to straight line graphs
Unknown Concurrency #1
Taylor polynomials of cosine function
Linear function in modeling real objects
two triangles by yovan dragic
Straight line with given gradient through a specific point
A quadratic graph
GeoGebra constructions... quadratic edition
Rolling on a cycloid