Ava's vocab puzzle

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Across
  1. 3. te horizontal number line
  2. 5. 2 angles whose sum is 180 degrees
  3. 7. angle that makes up 90 degrees
  4. 8. the first number is the x cordinate and second number in the y cordinate
  5. 10. two number lines that form a right angle and intersect at their zero points
Down
  1. 1. a figure formed by three line segments
  2. 2. triangle three sides are the same
  3. 4. they have the same sides or they match
  4. 6. the vertical number line
  5. 9. the theorem that helps find the missing side in right triangle