REGULAR FIGURES

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Across
  1. 3. ALL FOUR INTERIOR ANGLES ARE EQUAL TO 90
  2. 5. IT IS A CLOSED 2D SHAPE THAT HAS ONE CURVED FACE
  3. 6. IT IS A FIVE SIDED POLYGON
  4. 7. THE OPPOSITE SIDES ARE EQUAL AND PARALLEL
  5. 9. IT HAS 6 EQUAL SIDES
  6. 10. IT HAS 1 EDGE
Down
  1. 1. ALTERNATE INTERIOR ANGLES ARE EQUAL
  2. 2. THE EDGES RUN PARALLEL TO THOSE PARALEL TO IT
  3. 4. THE SUM OF THE ANGLES OF A TRIANGLE IS EQUAL TO 180
  4. 8. THEY HAVE SIX FACES,EIGHT VERTICES AND 12 EDGES