Geometry words

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Across
  1. 2. really smooth
  2. 6. 5x_=35
  3. 7. bubble with triangle
  4. 8. 90 degrees to 180 degrees
  5. 9. shaped like a house
  6. 10. four edges
Down
  1. 1. 2D
  2. 3. point at top
  3. 4. bit like a Circle
  4. 5. 3D