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)`
`(A)/(\sin(A))=(B)/(\sin(B))=(C)/(\sin (C))`[tex]AC^2=AB^2+BC^2+2\cdot AB\cdot BC\cdot\cos (