geometry

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Across
  1. 4. a triangle with no equal sides
  2. 5. an angle that measures below 90 degrees
  3. 6. we use thise to rule straight lines
  4. 8. an angle that measures 180 degrees
Down
  1. 1. triangle with two equal sides
  2. 2. something we use to measure angles
  3. 3. an angle that measures over 180 degrees
  4. 7. an angle that measures 90 degrees