What is the measure of angle b?

Answer:
[tex]42[/tex]°
Step-by-step explanation:
[tex]A+B+C=180[/tex]
all measures of a triangle add up to 180
the angle opposite of angle b on the triangle is [tex]48[/tex]°
[tex]48+90+C=180[/tex]
[tex]138+C=180[/tex]
[tex]C=42[/tex]°
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