Geometry Crossword

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Across
  1. 2. a 3d version of a triangle which has a square bottom
  2. 4. the capacity of a object
  3. 5. the perimeter of a circle
  4. 8. a polygon with 4 sides
  5. 10. an angle which is > 90° but < 180°
  6. 12. a shape where all the angles add up to 180°
  7. 13. a triangle in which 2 sides that are equal
  8. 16. a part of the circumference
  9. 18. whem the angles that add up to 180°
Down
  1. 1. a line that cuts through 2 or more lines
  2. 2. It's the ratio of a circle's circumference to its diameter.
  3. 3. a 3D version of a circle
  4. 5. a straight line that connects any two points located on the circumference
  5. 6. an angle which is > 180° and < 360°
  6. 7. when the angles add up to 90°
  7. 9. a triangle where all sides are equal
  8. 11. the unit of measurement of an angle
  9. 14. it is also called a regular quadrilateral
  10. 15. a straight line that passes from one side of the circumference to the other through the centre
  11. 17. a 2 dimensional closed shape with straight sides