CONHECIMENTOS GEOMÉTRICOS E ALGÉBRICOS DO TETRAEDRO FRACTAL 3D

A fractal is a figure that has a unique characteristic that will be present in the entire domain of the figure. There are several different types of fractals, some of which are constructed from a simple figure such as a triangle ofplane geometry or a tetrahedron of spatial geometry. From the initial construction of a two-dimensional fractal starting with an equilateral triangle and using Napoleon's Theorem, in this article, we present a construction of a new three-dimensional fractal using ideas similar to Napoleon's Theorem in a tetrahedron. Using concepts of plane and spatial geometry, this fractal can be built from a regular tetrahedron, and from the midpoints of its edges a new tetrahedron with a 1/2 ratio side is built in relation to the initial tetrahedron. After this construction, the characteristics of the infinite application fractal are studied, such as the sum of the surface areas and the total volume of the formed figure.

Pengembangan Teorema Napoleon pada Segienam

Pada umumnya teorema Napoleon diberlakukan pada segitiga. Dalam tulisan ini dibahas teorema Napoleon pada segienam, yaitu segienam yang memiliki tiga pasang sisi sejajar dan sama panjang dengan kasus segienam beraturan yang dibangun mengarah ke luar. Pembuktian pada teorema Napoleon ini dengan menggunakan konsep kesebangunan dan konsep trigonometri. Kata kunci: Teorema Napoleon, konsep kekongruenan, trigonometri. ABSTRACT Napoleon’s Theorem generally applies in triangle. This paper applied Napoleon’s Theorem in hexagons that have three pairs of parallel sides in same length and regular hexagons that are built outward. Provided proofs use the congruence and trigonometric concepts. Keywords: Napoleon’s Theorem, congruency concept, trigonometry.

Napoleon’s quasigroups

Napoleon’s quasigroups are idempotent medial quasigroups satisfying the identity (ab·b)(b·ba) = b. In works by V. Volenec geometric terminology has been introduced in medial quasigroups, enabling proofs of many theorems of plane geometry to be carried out by formal calculations in a quasigroup. This class of quasigroups is particularly suited for proving Napoleon’s theorem and other similar theorems about equilateral triangles and centroids.

The Fermat point configuration

In this article a theorem similar to Napoleon’s theorem is established for the Fermat point configuration of a triangle. Areal coordinates are used throughout, with ABC as triangle of reference. For a full account of how to define and use these coordinates see Bradley [1]. Alternative synthetic proofs, generously supplied by the referee, are also included. The presentation of the paper with its emphasis on coordinates was designed in part to show that an algebraic treatment of the Fermat point configuration is possible, as well as the more familiar synthetic or complex number treatments.