Algebra Figure-Outter Puzzle

123456789101112131415161718192021
Across
  1. 3. the amount of space occupied in three dimensions and expressed in cubic units
  2. 8. a bar graph in which numerical data values are organized into equal intervals
  3. 9. the average of a set of ordered numbers where half of the numbers are above the median and half are below it
  4. 11. the point at which two lines meet
  5. 12. the inside region of a two-dimensional figure measured in square units
  6. 14. a line segment from any point on the circle passing through the center to another point on the circle
  7. 15. Lines two lines in the same plane that never meet and have an equal slope
  8. 17. Table a table which shows how many times a value occurs in a given interval
  9. 18. Angle an angle whose measure is exactly 90 degrees
  10. 19. the data point found most often in a set of numbers
  11. 20. any symbol that could represent a number
  12. 21. a transformation of a figure by turning it about a center point or axis
Down
  1. 1. figures or objects that are the same shape and the same size
  2. 2. Theorem the square of the hypotenuse (c) of a right triangle is equal to the sum of the square of the legs (a and b), as shown in the equation c^2=a^2+b^2
  3. 4. an increase in size in all directions by a uniform amount
  4. 5. Number a real number that can not be expressed as a ratio of two numbers
  5. 6. Angles two angles, the sum of which is exactly 90 degrees
  6. 7. angle an angle with a measure of more than 90 degrees but less than 180 degrees
  7. 10. Angle an angle with a measure of less than 90 degrees
  8. 13. the number of times the base occurs as a factor
  9. 16. any of the four regions formed by the axes in a rectangular coordinate system
  10. 19. the middle point of a set of ordered numbers where half are below it and half are above