Marianna's work

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Across
  1. 4. What is the factor of six but is even
  2. 6. I am between twenty and thirty and I am the half of fifty
  3. 7. I can be acute, right and obtuse
  4. 8. I am twice of eleven
Down
  1. 1. What is called an angle less than ninety
  2. 2. I am the sum of 25 and 31
  3. 3. I am the quotient of twelve and two
  4. 5. I am a factor of eight and I am odd
  5. 6. I am the second multiple of seven
  6. 9. I am the remaining of five and two