Math

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Across
  1. 3. ....of equations
  2. 6. figure with four equal sides
  3. 7. sign of subtraction
  4. 8. measurement of angle
  5. 10. graph of quadratic equation
  6. 11. number set to locate a point/line/etc
Down
  1. 1. adjacent over hypotenuse
  2. 2. shapes, sides, angles
  3. 4. mathematician; created triangle of binomial coefficients
  4. 5. line that has a direction
  5. 9. two expressions are equal