Answer:
area of triangle=1/2×absin theta.
hope it helps.
[tex]area \ when \ 2 \ sides \ and \ angle \ between \ them \ are \ given[/tex]
[tex]= \frac{1}{2}*30*24*sin 40[/tex]
[tex]= 360 * sin40 \\=360 * 0.642787 \\= 231.40cm^{2}[/tex]
