Crossword Puzzle

1234
Across
  1. 1. a continuous curved line, the points of which are always the same distance away from a fixed central point, or the area inside such a line
  2. 3. having a smile
  3. 4. shaped like a circle that is flattened so that it is like an egg
Down
  1. 1. the act of crying, or the sound of someone crying
  2. 2. a flat shape with three straight sides