Math Words

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Across
  1. 2. to show that one number or amount is added to another.
  2. 4. 2and3
  3. 6. triangle：a triangle in which two of the sides are the same length.
  4. 10. flat shape with three straight sides and three angles.
  5. 11. triangle：a triangle whose three sides are all the same length.
  6. 12. than：smaller than.
Down
  1. 1. lines：two lines have the point of intersection.
  2. 3. number is weakened by another number.
  3. 5. angle：an angle of 90˚, like the angles at the corners of a square.
  4. 7. angle：an angle between 90 and 180 degrees.
  5. 8. triangle：a triangle whose sides are each a different length.
  6. 9. lines：two lines will never intersect.