Pascals Triangle

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Across
  1. 2. The shape that gives the pattern its name.
  2. 3. The triangle looks the same on both sides.
  3. 5. Each number is made by adding the two above it.
  4. 6. Every row in Pascal’s Triangle begins and ends with this number.
  5. 8. The sum of all numbers in a row equals this number to a certain power.
  6. 9. The triangle starts counting rows from this number.
  7. 10. The triangle is named after this French mathematician.
  8. 12. These are the numbers that multiply terms in a binomial expansion.
Down
  1. 1. The triangle shows coefficients of this algebraic expansion.
  2. 4. Used to find the number of ways to choose items.
  3. 7. The triangle is built line by line, also called these.
  4. 11. Another name for the rows in the triangle.