A parallelogram arising when erecting similar triangles on the sides of a quadrilateral—and corresponding historic notes

There are numerous interesting situations, problems and phenomena in which figures are erected on the sides of triangles or quadrilaterals. In many cases, the erected figures are similar to each ot...

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Publication Details

Journal
The Mathematical Gazette
Published
2026-08-27
DOI
https://doi.org/10.1080/00255572.2026.2714216
Primary Topic
Advanced Theoretical and Applied Studies in Material Sciences and Geometry
Type
article
Field-Weighted Citation Impact
0.00
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article

A parallelogram arising when erecting similar triangles on the sides of a quadrilateral—and corresponding historic notes

Hans Humenberger
The Mathematical Gazette
Advanced Theoretical and Applied Studies in Material Sciences and Geometry
article

A parallelogram arising when erecting similar triangles on the sides of a quadrilateral—and corresponding historic notes

Hans Humenberger
article en

Abstract

There are numerous interesting situations, problems and phenomena in which figures are erected on the sides of triangles or quadrilaterals. In many cases, the erected figures are similar to each ot...

The Mathematical Gazette
University of Vienna (AT)
Sustainable cities and communities
Openalex Percentile: Top 19%
Advanced Theoretical and Applied Studies in Material Sciences and Geometry
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