Perimeter

**Step 1. Understand What "Perimeter" Means** The perimeter is the total distance around a two-dimensional shape. It is the sum of the lengths of all the sides of the shape. **Step 2. Identify the Shape** The formula used to compute the perimeter depends on the shape: - **For a rectangle** with length \( l \) and width \( w \), the perimeter \( P \) is \[ P = 2(l + w) \] - **For a square** with side length \( s \), the perimeter \( P \) is \[ P = 4s \] - **For a triangle** with side lengths \( a \), \( b \), and \( c \), the perimeter \( P \) is \[ P = a + b + c \] - **For a regular \( n \)-sided polygon** with side length \( s \), the perimeter \( P \) is \[ P = n \times s \] **Step 3. Compute the Perimeter** To compute the perimeter: 1. Identify the shape. 2. Determine the appropriate formula. 3. Substitute the given dimensions into the formula. 4. Perform the arithmetic to find the result. For example, if you have a rectangle with \( l = 5 \) and \( w = 3 \), then the perimeter is \[ P = 2(5 + 3) = 2 \times 8 = 16. \] If you have further information or a specific shape and dimensions, please provide them so the calculation can be more precise.