Answer:
The answer is option:C([tex]B=arctan(0.75)[/tex])
Step-by-step explanation:hdQSD
Since we have to find the measure of angle B so for defining the trignometric function corresponding to B we need to take side AC as pependicular(p)=12, AB as base(b)=16 and BC as hypotenuse(h)=20.
now when we define the tangent function corresponding to angle B than [tex]\tan B=\frac{p}{b}[/tex]
[tex]\tan B=\frac{12}{16}=0.75[/tex]
[tex]B=arctan(0.75)[/tex] is the required measure of angle B.
