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Math Dictionary
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Found 22 Terms

sample space
The set of all possible outcomes for an experiment. Example: In tossing a number cube, the sample space, S, is S= {1,2,3,4,5,6}.

scalene triangle
A triangle with sides of different length and three different interior angles.

sector
The part of a circle bounded by two radii and the included arc.

segment
The part of a circle bounded by a chord and an arc.

semi-circle
Half of a circle (the area bounded by a diameter and an arc).

sequence
A pattern that follows a rule or order.

seriate
To put in order

simple fraction
A fraction with the numerator less than the denominator

simplify
To change to simpler terms (e.g., 45/60 to 3/4).

sine
In a right triangle, the length of a side opposite an angle divided by the length of the hypotenuse of the triangle.

solid shape
A three-dimensional shape (with length, width, height).

sphere
A three-dimensional shape comprising a set of points, each point being equidistant from its center (e.g., a ball).

square number
A number whose units can be arranged into a square (e.g., 4::).

square pyramid
A three-dimensional shape with a square base and four sloping triangular sides meeting at a common vertex.

squared
A number squared is multiplied by itself.

standard form
A polynomial written with the exponent of the variable decreasing from left to right

subset
A set within a set.

subtrahend
A number to be subtracted from another number.

sum
The result when two or more numbers are added.

supplementary angles
Two angles which, when added, total 180º.

surface area
The total area of all faces of a three-dimensional shape (measured in square units).

symmetrical
A shape is symmetrical if it is identical on either side of a line dividing it into two parts.