6th/7th grade geometry

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Across
  1. 2. The space inside a shape
  2. 4. Twice the radius
  3. 5. A type of triangle with two equal sides
  4. 7. A angle that measures more than 90
  5. 9. A type of triangle with no equal sides
  6. 12. The same size and shape
  7. 13. A type of angle that measures 90
  8. 14. A straight path that never stops
  9. 15. A type of angle that measures less than 90
Down
  1. 1. The distance around a circle
  2. 3. A line that goes to edge of the circle to the center
  3. 6. A type of triangle with three equal sides
  4. 8. Part of line is called a line _________
  5. 10. A exact location
  6. 11. A type of angle that measures 180