In architectural sketches, a 45degree angle often signals a smart, efficient design choice. It simplifies layouts and enhances visual structure. Uniccm notes how it’s commonly found in frameworks, staircases, and sloped roofs. It’s one of geometry’s most practical tools. https://www.uniccm.com/blog/what-is-a-45-degree-angle-and-how-is-it-used-in-architecture