The Question is Incomplete The complete question with figure is below.
Answer:
Therefore the equation to solve for b is
[tex]\tan 30 = \dfrac{5}{b}[/tex]
Step-by-step explanation:
Given:
In Right Angle Triangle ABC
∠C = 90°
BC = 5 cm
AB = 10 cm
∠A = 30°
To Find:
b = ?
Solution:
In Right Angle Triangle ABC Tangent identity we have
[tex]\tan A = \dfrac{\textrm{side opposite to angle A}}{\textrm{side adjacent to angle A}}[/tex]
Substituting the values we get
[tex]\tan 30 = \dfrac{BC}{AC}\\\\\tan 30 = \dfrac{5}{b}[/tex]
Therefore the equation to solve for b is
[tex]\tan 30 = \dfrac{5}{b}[/tex]