Editing Euclid (section)

=== Other works ===
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[[File:Euclid Dodecahedron 1.svg|thumb|Euclid's construction of a regular [[dodecahedron]]]]

In addition to the ''Elements'', at least five works of Euclid have survived to the present day. They follow the same logical structure as ''Elements'', with definitions and proved propositions.
* ''Catoptrics'' concerns the mathematical theory of mirrors, particularly the images formed in plane and spherical concave mirrors, though the attribution is sometimes questioned.{{sfn|Sialaros|2021|loc=§ "Other Works"}}
* The ''[[Euclid's Data|Data]]'' ({{langx|grc|Δεδομένα}}), is a somewhat short text which deals with the nature and implications of "given" information in geometrical problems.{{sfn|Sialaros|2021|loc=§ "Other Works"}}
* ''On Divisions'' ({{langx|grc|Περὶ Διαιρέσεων}}) survives only partially in [[Arabic language|Arabic]] translation, and concerns the division of geometrical figures into two or more equal parts or into parts in given [[ratio]]s. It includes thirty-six propositions and is similar to Apollonius' ''Conics''.{{sfn|Sialaros|2021|loc=§ "Other Works"}}
* The ''[[Euclid's Optics|Optics]]'' ({{langx|grc|Ὀπτικά}}) is the earliest surviving Greek treatise on perspective. It includes an introductory discussion of [[geometrical optics]] and basic rules of [[Perspective (graphical)|perspective]].{{sfn|Sialaros|2021|loc=§ "Other Works"}}
* The ''[[Euclid's Phaenomena|Phaenomena]]'' ({{langx|grc|Φαινόμενα}}) is a treatise on [[spherical astronomy]], survives in Greek; it is similar to ''On the Moving Sphere'' by [[Autolycus of Pitane]], who flourished around 310 BC.{{sfn|Sialaros|2021|loc=§ "Other Works"}}