Chapter 4 Crossword

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Across
  1. 1. triangle
  2. 4. angle
  3. 6. angle
  4. 7. proof
  5. 10. figures
  6. 11. interior angles
Down
  1. 2. angle
  2. 3. angles
  3. 5. sides and angles
  4. 8. and hypotenuse of aright triangle
  5. 9. triangle