What is the triangle of meaning and how can it lead to confusion and an unclear message? What prominent examples are there?

Prompt: Read Mrs. Eleanore’s Chapter 3 Notes on Verbal Communication on: https://fuchsia-eleanore-35.tiiny.site/
Question: In Chapter 3, we discuss the “triangle of meaning.” What is the triangle of meaning and how can it lead to confusion and an unclear message? What prominent examples are there?