maths crossword puzzle - YEAR 8

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Across
  1. 1. The number of sides on a hexagon.
  2. 3. - A line segment joining two non-adjacent vertices of a polygon.
  3. 5. - The number of degrees in a right angle.
  4. 7. - The number of sides on a pentagon.
  5. 10. - The number of vertices in a cube.
  6. 12. - The number of millimeters in a centimeter.
  7. 14. - The process of arranging data in ascending or descending order.
  8. 16. The term for the square root of a negative number.
  9. 17. The result of dividing one number by another.
  10. 19. - The largest digit in the decimal number system.
  11. 20. - The mean of the data set: 12, 15, 18, 20, 25.
  12. 22. - The result of subtracting 15 from 27.
  13. 23. - The process of finding the size of an unknown angle in a triangle using the sum of interior angles.
Down
  1. 1. - A polygon with four equal sides and four right angles.
  2. 2. The product of 6 and 9.
  3. 4. hundred eighty The sum of the interior angles of a triangle.
  4. 6. - The process of representing numbers using digits and place value.
  5. 8. - A triangle with one angle measuring greater than 90 degrees.
  6. 9. The middle number of a data set when arranged in numerical order.
  7. 11. - The metric unit for measuring angles.
  8. 12. hundred sixty - The sum of the exterior angles of a polygon.
  9. 13. The measure of the central angle of a circle with radius 6 cm.
  10. 15. - The smallest prime number.
  11. 18. - The perimeter of a rectangle with length 8 cm and width 5 cm.
  12. 20. - A measure of central tendency which represents the most frequently occurring value in a data set.
  13. 21. - A polygon with five sides.