Geometry

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Across
  1. 2. angle180degrees
  2. 3. onthespot
  3. 5. likeaplus
  4. 6. lessthen90degrees
  5. 8. sidebyside
  6. 9. straight
  7. 10. morethan90degrees
Down
  1. 1. 90degrees
  2. 4. cross through
  3. 7. 1parallelside