Maths

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Across
  1. 2. 7. The measure of how heavy something is
  2. 4. 5. A value that does not change
  3. 7. 4. A segment joining two points on a circle
  4. 9. Two rays sharing the same endpoint (vertex)
  5. 11. 9. A line that crosses/intersects two or more lines
  6. 12. 4. Objects and figures that have the same size and shape
  7. 13. 2. A step by step procedure by which an operation can be carried out
  8. 16. The bottom of a shape or three-dimensional object, what an object rests on
  9. 17. 7. An equation that is true for variables of any value
  10. 18. 10. The difference between the maximum and minimum in a set of data
  11. 19. 1. A straight line with only one endpoint that extends infinitely
Down
  1. 1. 3. A polynomial equation with two terms usually joined by a plus or minus sign
  2. 3. 6. All whole numbers, positive or negative, including zero
  3. 5. Line segments joined together to form a closed figure
  4. 6. 9. A ratio or fraction with the denominator 100
  5. 8. 6. a graph that uses bars that equal ranges of values
  6. 10. 5. A line is where two faces meet in a three-dimensional structure
  7. 13. 1. The branch of mathematics that substitutes letters for numbers to solve for unknown values
  8. 14. 8. The total distance around the outside of a polygon
  9. 15. 8. A letter used to represent a numerical value in equations and expressions