Plane Geometry

Demonstrations 1 - 20 of 1042

Lattice Squares of Integer AreaNew this month | Folding a Strip to Form Regular Odd n-GonsNew this month | Pi = 4?New this month | Making a Strip of Isosceles TrapezoidsNew this month | Guessing the Symmetry GroupUpdated this month |

Pythagorean Theorem for Regular PolygonsNew this month | Area of Parallelogram in Terms of Its DiagonalsNew this month | Construction of Squares from a ParallelogramNew this month | Folding a Strip into a PentagonNew this month | Four Visual Proofs of a Theorem about a Regular NonagonNew this month |

Arbitrary Curves of Constant WidthUpdated this month | ||||