N I O I P I Q I R I S I T I U I V I W I X I Y I Z

**A**I B I C I D I E I F I G I H I I I J I K I L I MN I O I P I Q I R I S I T I U I V I W I X I Y I Z

## S

A drawing that is a reduction or enlargement of the original.

A triangle with three unequal sides.

A graph with points plotted on a coordinate plane.

A unit of measure for angles equal to 1/60 of a minute.

An area between an arc and two radiuses of a circle. Sometimes referred to as a wedge.

A piece of a line with two endpoints.

A set of numbers, called terms, arranged in some particular order.

A well-defined group of objects.

Two polygons are similar if their corresponding sides are proportional.

A fraction is in simplest form if both its numerator and denominator are whole numbers and their only common factor is 1.

A fraction in simplest form.

In a right triangle, the ratio of the length of the side opposite the angle to the length of the hypotenuse.

Reducing to lowest terms.

Lines that are not in the same plane and that do not intersect.

The steepness of a line expressed as a ratio, using any two points on the line.

An equation of the form

The value of a variable that makes an equation true.

A three-dimensional figure with all points in space a fixed distance from a given point, called the center.

A quadrilateral with four equal sides and four 90

The square root of

Decimal notation.

The science of collecting, organizing, and analyzing data.

In statistics, a way of recording, organizing and displaying numerical data so that the original data remains intact.

An angle that measures 180°.

The process of finding the difference between two numbers.

The result of adding numbers.

Two angles are supplementary if their sum is 180° .

For a three-dimensional figure, the sum of the areas of all the faces.

A correspondence of parts.

A collection of two or more equations with a same set of unknowns.

**scale drawing**A drawing that is a reduction or enlargement of the original.

**scalene triangle**A triangle with three unequal sides.

**scattergram**A graph with points plotted on a coordinate plane.

**second**A unit of measure for angles equal to 1/60 of a minute.

**sector**An area between an arc and two radiuses of a circle. Sometimes referred to as a wedge.

**segment**A piece of a line with two endpoints.

**sequence**A set of numbers, called terms, arranged in some particular order.

**set**A well-defined group of objects.

**similar**Two polygons are similar if their corresponding sides are proportional.

**simplest form (lowest terms)**A fraction is in simplest form if both its numerator and denominator are whole numbers and their only common factor is 1.

**simplified fraction**A fraction in simplest form.

**sine**In a right triangle, the ratio of the length of the side opposite the angle to the length of the hypotenuse.

**simplifying**Reducing to lowest terms.

**skew lines**Lines that are not in the same plane and that do not intersect.

**slope**The steepness of a line expressed as a ratio, using any two points on the line.

**slope-intercept**An equation of the form

*y*=*mx*+*b*, where*m*is the slope and*b*is the y-intercept.**solution**The value of a variable that makes an equation true.

**sphere**A three-dimensional figure with all points in space a fixed distance from a given point, called the center.

**square**A quadrilateral with four equal sides and four 90

*o*angles.**square root**The square root of

*x*is the number that, when multiplied by itself, gives the number*x*.**standard notation**Decimal notation.

**statistics**The science of collecting, organizing, and analyzing data.

**stem-and-leaf plot**In statistics, a way of recording, organizing and displaying numerical data so that the original data remains intact.

**straight angle**An angle that measures 180°.

**subtraction**The process of finding the difference between two numbers.

**sum**The result of adding numbers.

**supplementary angles**Two angles are supplementary if their sum is 180° .

**surface area**For a three-dimensional figure, the sum of the areas of all the faces.

**symmetry**A correspondence of parts.

**system of equations**A collection of two or more equations with a same set of unknowns.