Respuesta :

Hrishii

Answer:

40°

Step-by-step explanation:

  • [tex]m\angle DCB +m\angle ACD = 180\degree[/tex] (Linear pair angles)

  • [tex]\implies 140\degree +m\angle ACD = 180\degree[/tex]

  • [tex]\implies m\angle ACD = 180\degree-140\degree[/tex]

  • [tex]\implies m\angle ACD = 40\degree[/tex]