Pythagoras

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Across
  1. 2. The distance between two non adjacent vertices.
  2. 4. The study of angles and sides in triangles.
  3. 6. Sometimes called exact value.
  4. 8. The longest side in a right triangle.
  5. 10. A number that cannot be expressed as a fraction.
  6. 11. A triangle with two sides equal in length.
  7. 14. Multiplying a number by itself.
  8. 16. A triangle that has a 90 degree angle.
  9. 17. The longest diagonal in a cube.
Down
  1. 1. The distance around the boundary of a shape.
  2. 3. A president of the USA who wrote a proof of Pythagoras.
  3. 5. Nationality of Pythagoras.
  4. 7. A mathematical law.
  5. 9. The island where Pythagoras was born.
  6. 12. A triangle with three sides of equal length.
  7. 13. A triangle with all angles less than 90 degrees.
  8. 15. A quadrilateral with diagonal intersecting at right angles.'