greckga901
greckga901 greckga901
  • 12-10-2020
  • Mathematics
contestada

I need help you ASAP I need the answer

I need help you ASAP I need the answer class=

Respuesta :

ujalakhan18
ujalakhan18 ujalakhan18
  • 12-10-2020

Answer:

[tex]\huge\boxed{<BCA = 48\°}[/tex]

Step-by-step explanation:

The measure of exterior angle is equal to the sum of the non-adjacent interior angles.

So,

∠NAB = ∠ABC + ∠BCA

105° = 57° + ∠BCA

Subtracting 57 to both sides

∠BCA = 105°-57°

∠BCA = 48°

Hope this helped!

~AnonymousHelper1807

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