Answer:
[tex]83^{\circ}[/tex]
Step-by-step explanation:
Let [tex]C[/tex] be the point that denotes the pier.
[tex]m\angle B=58^{\circ}[/tex]
[tex]m\angle A=39^{\circ}[/tex]
The angle between A and B is C
[tex]m\angle A+m\angle B+m\angle C=180^{\circ}\\\Rightarrow m\angle C=180^{\circ}-(m\angle A+m\angle B)\\\Rightarrow m\angle C=180^{\circ}-(58^{\circ}+39^{\circ})\\\Rightarrow m\angle C=83^{\circ}[/tex]
The measure of the angle between Ship A and Ship B is [tex]83^{\circ}[/tex].
