maths

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Across
  1. 2. a tool used to measure sides
  2. 7. 100+100-50+2
  3. 10. an angle that is less than 90 degrees
Down
  1. 1. the 14th multiple of ten
  2. 3. 9x8
  3. 4. 5 to the power of 0
  4. 5. the tool used to measure angles
  5. 6. 25+10+25-10+17-7+10-20
  6. 8. a polygon with nine sides
  7. 9. 6 side an is a regular shape