Math Vocabulary, Puzzle #1

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Across
  1. 7. theorem for side lengths of right triangles
  2. 8. answer to addition problem
  3. 11. outside the parallel lines
  4. 13. more than 90 degrees
  5. 14. two sides of triangle forming right angle
  6. 15. lines that never intersect
  7. 16. inside the parallel lines
  8. 18. less than 90 degrees
Down
  1. 1. square root symbol
  2. 2. answer to division problem
  3. 3. triangle's side opposite of right angle
  4. 4. intersects a set of parallel lines
  5. 5. amount of space an object takes up
  6. 6. equivalent fractions
  7. 9. answer to subtraction problem
  8. 10. answer to multiplication problem
  9. 12. comparison of two numbers by division
  10. 17. 90 degree angle