Math crossword

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Across
  1. 3. adjacent/hypotenuse
  2. 5. triangle with all 60 degree angles
  3. 7. a2 + b2 = c2
  4. 10. something raised to a power
  5. 11. order of operations
  6. 12. quadrilateral with one set of parallel lines
  7. 13. 90 degrees
  8. 15. top half of a fraction
  9. 16. closed shape of 3 or more sides
  10. 19. bottom half of a fraction
  11. 20. greater than 90 degrees
Down
  1. 1. same shape different size
  2. 2. less than 90 degrees
  3. 4. quadrilateral with two parallel lines
  4. 6. y = ax2 + bx + c
  5. 8. quadrilateral with two pairs or consecutive congruent lines
  6. 9. same size and shape
  7. 14. opposite/adjacent
  8. 17. opposite/hypotenuse
  9. 18. an instrument used for drawing circles and arcs