Respuesta :

gmany

Answer:

[tex]\large\boxed{A\approx213.71\ ft^2}[/tex]

Step-by-step explanation:

Use the formula:

[tex]A=\dfrac{1}{2}bc\sin A[/tex]

We have:

[tex]b=31\ ft,\ c=18\ ft,\ m\angle A=50^o\to\sin50^o\approx0.766[/tex]

Substitute:

[tex]A=\dfrac{1}{2}(31)(18)(0.766)\approx213.71\ ft^2[/tex]