📈college algebra review

key term - Perimeter

Definition

The perimeter is the total length around a two-dimensional shape. It is found by adding the lengths of all sides of the shape.

5 Must Know Facts For Your Next Test

  1. The perimeter of a rectangle is calculated using $P = 2l + 2w$ where $l$ is length and $w$ is width.
  2. For a square, the perimeter formula simplifies to $P = 4s$, where $s$ represents the length of one side.
  3. When dealing with polygons, sum the lengths of all sides to find the perimeter.
  4. In algebraic problems, you might need to solve for unknown side lengths using given perimeter values and equations.
  5. Perimeter can be used in real-world applications such as fencing a yard or framing a picture.

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