Lena's vocab puzzle

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Across
  1. 4. the middle number of a set of numbers that have been placed in numerical order
  2. 5. a number to the power of two
  3. 6. a line that goes straight up as it cannot be defined
  4. 7. a number to the power of three
  5. 8. the point where two lines meet and intersect with each other
  6. 9. the highest point of a slope
  7. 12. each number found in a given sequence
  8. 13. is the theorem that can find a missing side of the right triangle
Down
  1. 1. the longest side of a right triangle (the one that is slanted)
  2. 2. a letter that we plug in to show an unknown number
  3. 3. same thing as slope (3 words but no spaces)
  4. 8. whole numbers and their opposites
  5. 10. the average of numbers in a given data set
  6. 11. numbers the set of numbers that includes rational and irrational numbers