Learning About Triangles

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Across
  1. 6. a tool used to measure angles
  2. 7. a triangle that does not have any equal sides
  3. 9. a triangle that has all equal sides and angles
Down
  1. 1. an angle that equals 90 degrees
  2. 2. a polygon with three sides and angles
  3. 3. a triangle that has two equal sides
  4. 4. an angle that is less than 90 degrees
  5. 5. an angle that is greater than 90 degrees
  6. 8. a tool used to draw straight lines