Explanation
The Arctic Circle is located at approximately 66°30′ north latitude because this marks the tilt of Earth's axis (23.5°) relative to its orbit, creating the boundary where the sun remains visible at midnight during the June solstice.
Practice this MCQ: Where the Arctic Circle or Latitude is located that marks the boundary of the zone where the sun never sets during the June Solstice...
The Arctic Circle is located at approximately 66°30′ north latitude because this marks the tilt of Earth's axis (23.5°) relative to its orbit, creating the boundary where the sun remains visible at midnight during the June solstice.