1..if two of the line segments of a polygon are parallel,
what is the least number of sides it could have?
2..what is the least number of acute angles that a triangle can have?
답은 1번은 4..
2번은 2라고 하는데 정작 문제 정확한 해석을 모르겠어요,,,
가르쳐주세요,,
