Izidor. Hafner
Demonstrations 361 - 380 of 1363
 Equidistance and Betweenness in Euclidean Plane Geometry Freese's Dissection of a Regular Hexagon into Three Freese's Dissection of a Regular Dodecagon into Four Regular Dodecagons Freese's Dissection of a Regular Dodecagon into Two Squares Freese's Dissection of Two Regular Dodecagons into a Square Freese's Dissection of a Regular Dodecagon into an Isosceles Right Triangle 31. Construct a Triangle ABC Given the Length of AB, an Adjacent Angle and the Difference of the Lengths of the Other Two Sides Freese's Dissection of a Regular Dodecagon into a Square Freese's Dissection of Two Regular Dodecagons into Three Squares 30. Construct a Triangle ABC Given the Length of AB, the Angle at C and the Difference of the Other Two Sides 29. Construct a Triangle ABC Given the Length of AB, the Angle at C and the Sum of the Other Sides Pasch's Axiom in Euclidean Geometry 28. Construct a Triangle ABC Given the Length of AB, the Sum of the Other Two Sides, and a Line Containing C 1. Constructing a Point on a Cassini Oval Point of Intersection of an Ellipse with a Line Parallel Tangents to an Ellipse Equivalence of Projections in Involutive Rings Example of a Ring with an Improper Involution Orthogonality as well as Equidistance Can Be Used as the Sole Primitive Notion for Euclidean Geometry Pieri's Ternary Relation and Euclidean Geometry

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