👉 In mathematics, "ructious" refers to a specific type of polyhedron. The term is derived from Greek words meaning "rugged," which implies that it has strong or robust features and characteristics. Rustic design elements like wood, stones, and natural materials are commonly found in such objects as furniture, buildings, and interiors. In the context of geometry, a "ructious" polyhedron is an example where all faces have angles equal to 90 degrees