2D shapes

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Across
  1. 4. The number of sides in a decagon
  2. 6. The shape used in regular honeycomb tessellations
  3. 8. A 2D shape that has infinite lines of symmetry
  4. 9. A polygon with eight sides
  5. 10. The number of lines of symmetry in a square
Down
  1. 1. Symmetry in which two parts are identical when folded along a line
  2. 2. The number of lines of symmetry in an equilateral triangle
  3. 3. A shape with four equal sides and four right angles
  4. 5. A figure that has lines of symmetry
  5. 7. A closed plane figure with three straight sides