Triangles

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Across
  1. 1. A 180 degree angle is a straight ___
  2. 6. A tool for measuring angles
  3. 8. An angle that is less than 90 degrees
  4. 10. A triangle with no equal sides
  5. 11. The number of sides in a triangle
Down
  1. 2. A triangle with 3 equal sides
  2. 3. The angle with exactly 90 degrees
  3. 4. A shape with four equal sides and 4 90 degree angles
  4. 5. A triangle with 2 equal sides
  5. 7. An angle that is more than 90 degrees
  6. 9. A unit of measurement for angles