Mathematic crossword

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Across
  1. 3. what is the name of 3,14?
  2. 4. Side multiplied by the other side in a square
  3. 6. Round
  4. 7. I'm 5 meters away from you
  5. 8. A better word for plus
Down
  1. 1. A straight line connecting the centre of a geometric figure
  2. 2. any number that defines a location
  3. 5. have six sides
  4. 8. How many?