Answer:
x = 35°
Explanation:
The angle made by the directional line from wharf to Shell Cove relative to North is 60° at the point of departure from the wharf
The angle that this same line makes at the point of arrival at Shell Cove must be 60° relative to North since the two North directions are perpendicular and the line connecting the wharf and shell cove is a transversal intersecting these lines
This is because of the property that when two parallel lines are intersected by a transversal, the alternate interior angles must be the same
The angle made by this transversal at Shell Cove = x + 25 degrees
Since (x + 25)° = 60°
x = 60° - 25°
x = 35°