Final answer:
The reciprocal azimuth for an initial azimuth of 60° is 3) 180°.
Step-by-step explanation:
The reciprocal azimuth for an initial azimuth of 60° is 3) 180°.
To determine the reciprocal azimuth, you need to add 180° to the initial azimuth. So if the initial azimuth is 60°, the reciprocal azimuth would be 60° + 180° = 240°.
It can also be understood by considering that the azimuth angle is measured clockwise from the north. So, if the initial azimuth is 60°, the reciprocal azimuth would be 60° + 180° = 240°.