Question

I need help you ASAP I need the answer

Answer 1

`\huge\boxed{<BCA = 48\°}`

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