A rectangle’s area measures the number of equal-sized square units covering its interior and can be found by multiplying its side lengths: . An array of equal rows and columns represents this relationship and helps distinguish area from perimeter; the treatment is limited to rectangles with whole-number dimensions and does not include fractional or decimal side lengths, algebraic generalization, or more complex regions.
Area tells how many square units cover the inside of a rectangle.
To find the area, multiply the rectangle’s length by its width:
Example: A rectangle is 6 units long and 4 units wide.
Think of the rectangle as an array with 6 columns and 4 rows.
Multiply the side lengths:
Write the answer in square units:
The area is square units.
Area measures the inside of the rectangle, not the distance around its outside.
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