2d shapes

1234567
Across
  1. 3. shape that has 0 corners or sides
  2. 5. shape that has 5 sides
  3. 6. shape that has 3 corners?
  4. 7. shape that is thinner than the circle
Down
  1. 1. shape that has 4 equal sides
  2. 2. shape that has one more side than the pentagon
  3. 4. shape that has only 2 equal sides