| A | B |
| adjacent | "side by side" |
| angles | "two rays with a common endpoint" |
| chord | "segment joining any two points on a circle" |
| circle | "set of points equidistant from a center point" |
| circumference | "perimeter of a circle" |
| complementary | "two angles which together measure 90°" |
| cone | "3-dimensional figure created by rotating a right triange about on one of its legs" |
| congruent | "same size and same shape" |
| coordinate | "ordered pair of real numbers" |
| cylinder | "3-dimnesional figure made of 2 congruent parallel circles joined by a curved surface" |
| degree | "unit of measure for angles" |
| graph | "pictorial representation of data" |
| ordered pairs | "a pair of numbers locating a point in a plane" |
| parallel | "lines in the same plane which never intersect" |
| parallelogram | "quadrilateral with opposite sides parallel and congruent" |
| perimeter | "The distance around a shape or figure" |
| perpendicular | "intersecting at right angles" |
| plane | "a flat surface extending indefinitely" |
| plotting | "drawing points (orderede pairs) on a graphing surface" |
| polygon | "closed 2-dimensional figure made of segments" |
| prism | "3-dimensional figure created by 2 congruent and parallel faces that are polygons. Remaining faces are parallelograms." |
| proportional | "having equivalent ratios" |
| protractor | "tool for measuring angles" |
| pyramid | "3-dimensional figure whose base is a polygon and the other faces are triangles" |
| quadrant | "one of the four sections of a coordinate plane" |
| quadrilateral | "a polygon with 4 sides" |
| radius | "segment which goes from the center of a circle to the outside" |
| rectangle | "a quadrilateral with 2 pairs of congruent parallel sides and 4 right angles" |
| rhombus | "a parallelogram with 4 congruent sides" |
| segment | "a line between two endpoints" |
| sides | "segments which can make a polygon" |
| sphere | "3-dimensional figure in space made up of all points equidistant from a center point" |
| supplementary | "two angles which together measure 180°" |
| symmetry | "a correspondence in size and shape" |
| tesselation | "A covering of a plane with ovelaps or gaps using congruent figures" |
| thermometer | "tool for measuring temperature" |
| three-dimensional | "an object which can be measured in three directions" |
| time zone | "Man-made lines dividing the earth into 24 sections" |
| transformation | "operation that creates an image from a pre-image" |
| triangle | "a polygon with 3 sides" |
| two-dimensional | "An object which can be measured in two directions" |
| vertex | "the point at which 2 rays or segments meet" |