Maddy's Crossword

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Across
  1. 6. an underlying or supporting a structure
  2. 7. a full extent of something from end to end
  3. 9. a central stone
  4. 10. an engineer who designs roads, bridges, and structures
Down
  1. 1. the reduction in volume
  2. 2. a curved structure typically supporting the weight of a bridge
  3. 3. a structure built to support the ends of a bridge
  4. 4. a structure is made of triangles
  5. 5. the part of a structure that receives pressure
  6. 8. the state of being stretched tight