| A | B |
|---|
| area | the number measuring units needed to cover a shape. |
| base | the width of the bottom of a figure. |
| circumference | the perimeter of a circle |
| contiguous | physically connected (as in the 48 contiguous states of the United States.) |
| diagonal | a line segment connecting two nonadjacent corners of a figure |
| diameter | the length of a line segment through the center of a circle or the actual physical segment. |
| height | the vertical distance from the bottom to the top of something |
| hexagon | a six-sided poygon |
| kilometer | a metric unit of length equal to 1,000 meters and approximately equal to 0.62 mile. |
| liter | a metric unit of volume equal to 1,000 cubic centimeters or the amount of liquid a 10-centimeter cube holds |
| measuring unit | a specific amount used to measure size |
| meter | a metric unit of length equal to 100 centemeters and approxamately equal to 39 inches. |
| parallelogram | a quadrilateral with opposite sides parallel. |
| perimeter | the distance around a shape. |
| polygon | a closed plane figure bounded by strait line segments. |
| population density | the number of members per unit of area. |
| quadrilateral | a four sided polygon. |
| radius | the length of a line segment between the center of a circle and its circumference. |
| reallotment | the reshaping of a figure to form a new figure in which the area is not changed. |
| regular | having equal sides and equal angels. |
| reshape | to transform a shape by cutting and pasting. |
| surface area | the number of measuring units needed to cover the exterior region of an object. |
| tessellation | a repeating pattern with no open spaces that completely covers a region. |
| volume | the amount of space that a three-dimensional figure occupies. |
| acre | a unit of commonly used in measuring land in the united states; one acre is equal to 43,560 square feet. |
