Crossword Puzzle

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Across
  1. 3. A (blank) is something you can do over and over again, and you don’t know what will happen each time.
  2. 5. A(blank) is a three-dimensional figure with a circular base and a point not in the plane of the base called the apex. Each point on the base is connected to the apex by a line segment.
  3. 6. We say a polygon is (blank) by a circle if it fits inside the circle and every vertex of the polygon is on the circle.
  4. 8. The part of a circle lying between two points on the circle.
  5. 11. sequence: A sequence of numbers in which each number can be computed by adding the same amount to the previous number.
  6. 18. One figure is similar to another if there is a sequence of rigid motions and dilations that takes the first figure onto the second.
  7. 22. The single point on a cone or pyramid that is the furthest from the base. For a pyramid, the apex is where all the triangular faces meet.
  8. 23. value: The distance a number is from 0.
  9. 24. law of addition: For any two numbers a and b, a+b=b+a.
  10. 25. An(blank) in a triangle is a line segment from a vertex to the opposite side that is perpendicular to that side.
  11. 26. A statement that you think is true but have not yet proved.
  12. 29. law of multiplication: For two numbers a and b, a(b)=b(a).
  13. 31. A quadrilateral with four congruent sides.
  14. 32. law of multiplication: For any three numbers a, b, and c, it is always true that (a(b))(c)=a(b(c)).
  15. 35. The (blank) of a number between 0 and 1 is the acute angle whose cosine is that number.
  16. 36. plot: A box with “whiskers” showing the median, quartiles, and extremes (least and greatest values) of a collection of data values.
  17. 37. grid: A grid used to illustrate values of algebraic expressions.
  18. 39. A constant that a variable or expression is multiplied by.
  19. 40. The probability that one event occurs under the condition that another event occurs.
Down
  1. 1. A (blank) is a three-dimensional figure in which all cross-sections in every direction are circles.
  2. 2. A line about which a two-dimensional figure is rotated to produce a three-dimensional figure, called a solid of rotation. The dashed line is the axis of rotation for the solid of rotation formed by rotating the green triangle.
  3. 3. denominators: Multiplying both sides of an equation by some nonzero number that turns all the fractions in the equation into integers.
  4. 4. the square: Rewriting the equation x2+2mx=n as (x+m)2=n+m2 so that it can be more easily solved.
  5. 7. difference: In an arithmetic sequence, the amount that can be added to each number to get the next one.
  6. 8. The (blank) of a number between 0 and 1 is the acute angle whose sine is that number.
  7. 9. The(blank) of a triangle is the intersection of all three perpendicular bisectors of the triangle’s sides. It is the center of the triangle’s circumscribed circle.
  8. 10. like terms: Using the distributive law to add any two multiples of an expression such as x. For example, you can simplify 4x+5x into 9x.
  9. 12. A reasonable guess that you are trying to either prove or disprove.
  10. 13. The figure formed by intersecting a solid with a plane.
  11. 14. ratio: In a geometric sequence, the amount that each number can be multiplied by to get the next number.
  12. 15. function: ceiling(x) is the closest integer which is greater than or equal to x.
  13. 16. even: Have a profit of zero (that is, make exactly as much money as you spend).
  14. 17. fit line: When the points on a grid are not all on a straight line, but seem to have a somewhat linear pattern, you can find a line that is the “best fit” (closest) to the points.
  15. 19. The (blank) of a positive number is the acute angle whose tangent is that number.
  16. 20. A number that is raised to a power.
  17. 21. An extra line drawn in a figure to reveal hidden structure.
  18. 25. A line through the vertex of an angle that divides it into two equal angles.
  19. 26. of symmetry: A line that you can flip (or reflect) a graph across that results in the same graph.
  20. 27. A chord of a circle is a line segment both of whose endpoints are on the circle.
  21. 28. Prisms or cylinders are said to be right if when one base is translated to coincide with the other, the directed line segment that defines the translation is perpendicular to the bases.
  22. 30. The study of mathematical symbols and the rules for manipulating those symbols.
  23. 33. Principle If two solids are cut into cross sections by parallel planes, and the corresponding cross sections on each plane always have equal areas, then the two solids have the same volume.
  24. 34. law of addition: For any three numbers a, b, and c, it is always true that (a+b)+c=a+(b+c).
  25. 38. A rotation has a center and a directed angle. It takes a point to another point on the circle through the original point with the given center. The 2 radii to the original point and the image make the given angle.