Question

What is the measure of ZA if ZB = 110°, AB= 14, BC = 19?

Answer 1

$a^2=b^2+c^2-2ab\cdot\cos (\alpha)$$\frac{A}{\sin(A)}=\frac{B}{\sin(B)}=\frac{C}{\sin (C)}$[tex]AC^2=AB^2+BC^2+2\cdot AB\cdot BC\cdot\cos (