title: Carnot's theorem
text: # Carnot's theorem
  
  Carnot's theorem or Carnot's principle may refer to:
  
  In geometry:
  
  * Carnot's theorem (inradius, circumradius), describing a property of the incircle and the circumcircle of a triangle
  * Carnot's theorem (conics), describing a relation between triangles and conic sections
  * Carnot's theorem (perpendiculars), describing a property of certain perpendiculars on triangle sides
  
  In physics:
  
  