The Spanish edition is titled (Editorial Addison-Wesley Iberoamericana). 2. Is there an official solucionario? No — there is no official, published solution manual from Moise & Downs themselves. Unlike modern textbooks, this book was not bundled with a teacher’s edition containing fully worked solutions for all odd-numbered problems. Some teachers may have created answer keys, but these were never mass-produced or sold.

It sounds like you’re looking for the for the book Geometría Moderna by Edwin Moise and Floyd Downs (often titled Geometry or Modern Geometry in English).

Let me give you the full story on this topic, including what the book is, why the solucionario is hard to find, and where you might actually locate it. The full title is usually: “Geometry” by Edwin E. Moise and Floyd L. Downs, Jr. (Often called Moise & Downs ) It was a widely used textbook for high school and college geometry, especially in the 1960s–1980s , known for its rigorous, postulational approach (influenced by the “new math” movement). It covers Euclidean geometry with careful axioms, proofs, and constructions.