MATH CROSSWORD

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Across
  1. 2. a plane figure with at least three straight sides and angles.
  2. 5. an equation with the standard form of ax^2+bx+c=0
  3. 7. a mathematician who introduced the trigonometric technique: a^2+b^2=c^2
  4. 9. is an ancient algorithm for separating prime and composite numerals
  5. 12. a mathematician who anticipated the modern calculus and analysis, discovered the principle of buoyancy, and known for his "Eureka" act
  6. 13. a mathematician who first made the mathematical description of gravity and later developed Calculus
Down
  1. 1. introduced the plane with the x-axis and y-axis
  2. 3. an equation between 2 variables giving a straight line when plotted in a graph
  3. 4. the longest side of a three angled polygon
  4. 6. a process/set of rules to be followed in a calculation
  5. 8. the abstract science of number, quantity, and space
  6. 10. the father of geometry
  7. 11. the x-coordinate