CROSS WORD

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Across
  1. 4. All right angles are ----- to one another
  2. 5. Famous treatise of Euclid
  3. 6. -----are assumptions specific to geometry
  4. 8. Every real number is represented by a ----- on the number line
  5. 9. A system of axioms is called -----if it is impossible to deduce from these axioms a statement that contradicts any axiom or previously proven statement
Down
  1. 1. The decimal expansion of ------ is non terminating non recurring
  2. 2. All the rational and irrational numbers make up the collection of -----
  3. 3. If equals are added to equals the ---- are equal
  4. 7. Number of chapters in the treatise of Euclid