Respuesta :

The length of BC is 2.30

Explanation:

It is given that AB = 3 and ∠A = 50°

To find the length of BC, let us use the sine formula.

The formula is given by

[tex]\sin \theta=\frac{o p p}{h y p}[/tex]

where [tex]\theta=50^{\circ}[/tex], opp = BC and hyp = AB

Thus, substituting these in the formula, we get,

[tex]\sin 50=\frac{B C}{A B}[/tex]

From the diagram, the value of AB is 3.

Substituting the value and simplifying the expression, we have,

[tex]0.7660=\frac{B C}{3}[/tex]

Multiplying both sides by 3, we get,

[tex]2.298={B C}[/tex]

Rounding the answer to the nearest hundredth, we have,

[tex]BC=2.30[/tex]

Thus, the length of BC is 2.30