Math Terms

Across

5. Any combination of points, lines, planes, or curves in two or three dimensions (2 words)
8. A reference line in a coordinate system from which distances or angles are measured
9. The average of a data set, calculated by dividing the sum of the values by the total number of pieces of data
11. The straight-line distance from the center of a circle to any point on its edge
12. Describing figures that have the same shape and can be obtained from one another through dilations and other transformations
13. To roughly calculate a value, number, or quantity close to an exact amount
15. A logical conclusion reached on the basis of data, evidence, and reasoning
16. An integer that can be divided evenly into another integer
20. A mathematical "phrase" consisting of a combination of numbers, variables, and operation symbols without an equal sign
25. A number that can be expressed as a ratio of two integers or as a terminating or repeating decimal
26. The region located inside the boundary of a two-dimensional geometric figure
27. The theorem stating that the square of the hypotenuse of a right triangle is equal to the sum of the squares of the other two sides
28. A mathematical statement or proposition regarded as self-evidently true and used as a starting point for further reasoning
30. A geometric transformation that changes the size of a figure but maintains its original shape
32. Marked by exactness and accuracy in numerical expression or detail
33. A number from the set of whole numbers and their negative opposites
34. A specific data point that is significantly smaller or larger than the other numbers in a set
37. A closed plane figure bounded by three or more straight line segments
40. A number that cannot be written as a simple fraction and has a non-repeating, non-terminating decimal expansion
41. A mathematical sentence that compares two unequal expressions using one of the symbols <, >, ≤, ≥, or ≠
42. A fixed, nonzero number in an equation that does not change
43. A specific type of triangle where all three straight sides are exactly the same length
44. The common point where the two sides of an angle or the edges of a polygon meet
45. A mathematical symbol used to indicate the root of a number, such as a square or cube root
46. A three-dimensional shape characterized by six identical square faces
48. The branch of mathematics dealing with the relations between the sides and angles of triangles
49. A transformation that turns a two-dimensional figure around a fixed central point
53. A 2-dimensional geometric figure with three straight sides and three internal angles
54. A 2-dimensional system in which the coordinates of a point are its distances from two intersecting perpendicular axes (2 words)
56. Two angles in a plane that have a common vertex and a common side but no common interior points (2 words)
58. A standard unit of measurement used for angles
60. A triangle that possesses at least two congruent sides
62. The total distance around the edge of a circle, equal to slightly more than three times its diameter
64. The mathematical measure of the likelihood that a specific event will occur
65. The point on a coordinate plane where a graph crosses or touches an axis
67. The distance of a number from zero on a standard number line, which is always positive (2 words)
68. A type of sampling where every member of a population has an equal chance of being selected
69. Describing a four-sided polygon characterized by four right angles
70. A transformation that flips a geometric figure over a specific line to create a mirror image
71. A line that cuts across two or more parallel lines, creating various predictable angle relationships

Down

1. The total distance around the outside edge of a polygon
2. A three-dimensional geometric figure for which a specific formula is used to calculate volume
3. A proposed mathematical theory or explanation that can be tested through inquiry and investigation
4. The logical process of reaching a conclusion by reasoning from general established mathematical principles
6. A 3-dimensional figure with circular ends and straight parallel sides whose volume can be calculated by formula
7. A graph displaying a collection of ordered pairs to show the relationship between two quantitative variables (2 words)
8. A triangle with no angle measuring 90º or more (2 words)
10. A transformation that slides a figure along a straight path from one position to another
14. A metric unit of length measurement equal to exactly 1,000 meters
17. The middle number in a data set when the values are arranged in numerical order
18. Describing two angles whose measures add up to exactly 90 degree
19. The complete set of all possible output values produced by a mathematical function
21. The science of collecting, organizing, and analyzing numerical data to find patterns or make inferences
22. The distance across a circle through its center point, equal to twice the radius
23. Describing lines in a plane that are always the same distance apart and never intersect
24. The mathematical process of changing the position, orientation, or size of a geometric figure
29. A statement that reverses a theorem, such as the proof that if a² + b² = c², the triangle must be a right triangle
31. Changes or differences observed in a set of numerical data
35. A variable in a function whose variation does not depend on that of another variable
36. A rule that pairs each unique input value with exactly one output value
38. Describing a relationship between two variables where their ratio remains constant
39. A mathematical statement asserting that two expressions are equal, always marked by an equal sign
47. The specific value that appears most frequently within a collection of data
50. The measure, in square units, of the interior region of a 2-dimensional figure or the surface of a 3-dimensional figure
51. The measurement of the total amount of 3-dimensional space enclosed within an object
52. The ratio of the vertical change to the horizontal change between two specific points on a coordinate plane
55. Describing two-dimensional figures that have exactly the same size and shape
57. A three-dimensional shape with a circular base that tapers to a point
59. A closed plane curve where the sum of its distances from two fixed points remains constant
61. A number representing the power to which a base quantity is to be raised
63. A numerical factor that multiplies a variable in an algebraic term
66. The complete set of all possible input values for a given mathematical function