Math

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Across
  1. 2. theoretical The likelihood of an event happening that is based on theory rather than on experience and observation.
  2. 3. A closed plane figure whose sides are straight lines and do not cross.
  3. 4. Forming a right angle.
  4. 6. Any of the four regions formed by the axes in a rectangular coordinate system.
  5. 8. (relationship) A predictable or prescribed sequence of numbers, objects, etc. Patterns and relationships may be described or presented using munipulatives, tables, graphics (pictures or drwings), or algebraic rules (functions).
  6. 9. The likelihood of an event happening. An impossible event has a probability of zero. An event that will occur with absolute certainty is assigned a probability of one. Every event that is neither certain nor impossible has a probability that is between zero and one, and is obtained by dividing the number of favorable outcomes of an event by the total number of possible outcomes.
  7. 10. Any whole number with only two factors, 1 and itself (e.g., 2, 3, 5, 7, 11, etc.).
  8. 12. A special-case ratio in which the second term is always 100. The ratio is written as a whole number followed by a percent sign (e.g., 25% means the ratio of 25 to 100).
  9. 13. An undefined, two-dimensional (no depth) geometric surface that has no boundaries specified. A plane is determined by defining points or lines exisiting on the plane.
Down
  1. 1. 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.
  2. 2. The symbol designating the ratio of the circumference of a circle to its diameter, represented as either 3.17 or 22/7.
  3. 3. The length of the boundary around a figure.
  4. 4. section The intersection of a plane and a three-dimensional figure.
  5. 5. A two-dimensional figure that lies entirely within a single plane.
  6. 7. A set of steps that demonstrates the truth of a given statement. Each step can be justified with a reason, such as a given, a definition, an axiom, or a previously proven property.
  7. 9. The position of a single digit in a whole number or decimal number containing one or more digits.
  8. 11. sign The symbol used before a number to show that the number is radicand.
  9. 12. A location in space that has no length or width.
  10. 13. A three-dimensional figure (polyhedron) with congruent polygonal bases and lateral faces that are all parallelograms.