Explore the principles of flat space, parallel lines, and classic theorems through interactive visualizations.
Discover Euclid's five postulates and their applications in plane geometry.
Euclid's fifth postulate states that given a line and a point not on it, exactly one line can be drawn through the point that never intersects the original line.
In Euclidean geometry, the sum of angles in any triangle always equals 180 degrees.
Figures are congruent if they have the same shape and size through transformations like rotation or reflection.
Similar figures share identical shape but different size through scaling transformations.