Answer:
[tex]A=61.8\ units^2[/tex]
Step-by-step explanation:
see the attached figure to better understand the problem
we know that
The area of triangle ABC applying the law of sines is equal to
[tex]A=\frac{1}{2}(AC)(BC)sin(C)[/tex]
substitute the given values
[tex]A=\frac{1}{2}(10)(13)sin(72^o)[/tex]
[tex]A=61.8\ units^2[/tex]
