High School Applications of Morley's Theorem

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SUMMARY

Morley's Trisector Theorem states that in any triangle, the intersection points of the adjacent angle trisectors form an equilateral triangle. Despite its mathematical elegance, real-world applications of this theorem are limited, often categorized as abstract results. The discussion highlights that while many geometric theorems, including Morley's, may seem impractical, they can occasionally find relevance in fields like construction engineering, particularly in force diagrams. The conversation also references other geometric theorems, such as Thales and Pythagoras, which have more established applications.

PREREQUISITES
  • Understanding of basic geometric concepts, including triangles and angle bisectors.
  • Familiarity with Morley's Trisector Theorem and its implications.
  • Knowledge of geometric theorems such as Pythagoras' Theorem and Thales' Theorem.
  • Basic principles of engineering applications in geometry.
NEXT STEPS
  • Research the applications of Morley's Theorem in engineering contexts.
  • Explore the use of Thales' Theorem in construction and design.
  • Investigate the principles behind force diagrams in engineering.
  • Study the historical significance and applications of geometric theorems in various fields.
USEFUL FOR

Mathematicians, engineering students, educators, and anyone interested in the practical applications of geometric theorems.

Cheesycheese213
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I was planning to do an essay exploring Morley's Trisector Theorem, but I was having trouble finding and real life applications of it?

It states that "in any triangle, the three points of intersection of the adjacent angle trisectors form an equilateral triangle".

I thought it was pretty interesting so I chose it, but after researching it more, it looks like there really isn't much use for it other than being one of those "beautiful results" that are just interesting but can't really be used? One of the criteria is to reflect on the essay and what we learned, and we were told that we could for example relate it to the real world. But, if I can't even apply it to math I'm not very sure how I could do that?

Is there something (real life or in math) that the theorem can be applied to? Thanks!
 
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This is as with many geometric theorems. They appear as rather abstract and useless, but surprisingly appear from time to time. If you asked me for an application of Thales, I would have to admit, that I don't know one. Nevertheless I used it very often and I'm sure, e.g. construction engineers use it, too. One thing that came to mind were snow chains. I don't know which underlying principles they use for manufacturing them, but I could imagine that Morley could be used in some force diagrams.

You could have chosen worse:
https://www.emis.de/journals/BAG/vol.43/no.2/b43h2sta.pdf
http://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.38.4801&rep=rep1&type=pdf
but Pythagoras, Thales, sine and cosine theorems are certainly the frontrunners of all geometric theorems with respect to their applications.
 
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