This problem has three parts.
Part 1: A drone flies in a circular path around an object that is 90m east and 100m north of the drone operator. The drone is always 120m from the object.
Does the drone cross a north-south line through the operator's position?
yes
no
Explain why with one sentence:
The drone's circular path has the radius of 120m which is larger than the 90m east distance to the object, so the drone will cross the north-south line through the operators position.
Part 2: Suppose the drone operator is facing the object. Is the drone ever "behind" the drone operator?
yes
no
Explain why with one sentence:
The drone's circular path extends west of the operators position, meaning that the drone can be behind the operator at certain points during its path