Front

Area

Back

the amount of space inside a flat shape, like a square or rectangle, measured in "square units"

Front

Dimension

Back

a measurement of something in a specific direction, such as its length, width, or height

Front

Formula

Back

A mathematical relationship or rule expressed in symbols. Ex: l + l + w + w

Front

Length

Back

The measurement or extent of something from end to end.

Front

Model

Back

a simplified picture or representation of a real-life situation, using numbers, shapes, or diagrams, that helps you understand and solve problems

Front

Perimeter

Back

the total distance around the outside of a shape

Front

Rectangle

Back

A quadrilateral with opposite sides parallel and all angles right angles.

Front

Side

Back

a straight line that connects two corners (called vertices) of a shape, forming its boundary or outline

Front

Square

Back

A rectangle with all four sides of equal length.

Front

Square Unit

Back

a tiny square building block that you use to measure how much space a flat shape takes up