Answer:
b = 7[tex]\sqrt{3}[/tex]
Step-by-step explanation:
Since the triangle is right use the tangent ratio to solve for b
and the exact value
tan30° = [tex]\frac{1}{\sqrt{3} }[/tex], thus
tan30° = [tex]\frac{opposite}{adjacent}[/tex] = [tex]\frac{7}{b}[/tex] and
[tex]\frac{7}{b}[/tex] = [tex]\frac{1}{\sqrt{3} }[/tex] ( cross- multiply )
b = 7[tex]\sqrt{3}[/tex]
