Answer :

Hrishii

Answer:

38°

Step-by-step explanation:

[tex]m\angle 4 = 180° - [62\degree + (62\degree + 18\degree)] \\\\

m\angle 4 = 180\degree - [62\degree + 80\degree] \\\\

m\angle 4 = 180\degree -142\degree \\\\

m\angle 4 = 38\degree \\\\

[/tex]

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