Geometry crossword puzzle project

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Across
  1. 4. The point where two lines meet to form an angle.
  2. 6. A closed shape with straight sides.
  3. 7. Distance from the center of a circle to its edge.
  4. 12. The distance around the edge of a circle.
  5. 14. Angle A 90-degree angle.
  6. 15. Lines that never intersect, remaining equidistant apart.
Down
  1. 1. Angle An angle smaller than 90 degrees.
  2. 2. Lines that meet at a 90-degree angle.
  3. 3. The longest side of a right-angled triangle, opposite the right angle
  4. 5. A polygon with four sides.
  5. 8. The measure of space inside a 2D shape.
  6. 9. A triangle with two sides of equal length.
  7. 10. A straight line passing through the center of a circle.
  8. 11. Balanced arrangement of parts on either side of a line or point.
  9. 13. Shapes that have the same size and shape.