The Golden Ratio

Wikipedia gives nine alternative names for the golden ratio, three of them with Latin equivalents: golden mean, golden section (sectio aurea), extreme and mean ratio, medial section, divine proportion (proportio divina), divine section (sectio divina), golden proportion, golden cut, and golden number. The first two of these are probably more commonly used than the others.

If setting this as a quiz question, you should probably allow any one of these alternative answers.

© Haydn Thompson 2020