Level 3

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Across
  1. 2. The point where the perpendicular bisectors of a triangle intersect.
  2. 3. A triangle with one right angle.
  3. 5. A triangle with three sides of different lengths.
  4. 9. A quadrilateral with four right angles.
  5. 10. A triangle with all three angles measuring less than 90 degrees.
  6. 11. A triangle with one angle measuring more than 90 degrees.
  7. 12. The sum of the interior angles of a triangle.
Down
  1. 1. polygon with four sides.
  2. 4. A quadrilateral with two pairs of adjacent sides equal and parallel.
  3. 6. A triangle with all three sides of equal length.
  4. 7. A polygon with three sides.
  5. 8. The point where the angle bisectors of a triangle intersect.
  6. 9. A quadrilateral with opposite sides parallel and equal in length.