Shapes

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Across
  1. 2. You can see me in the sky!
  2. 4. I have 8 sides!
  3. 6. I have 3 sides!
  4. 8. I have four identical sides!
Down
  1. 1. I’m a vital organ in you!
  2. 3. I’m like a smaller square.
  3. 5. I’m round like a wheel!
  4. 7. I can also be a rare rock!