Find the perimeter of the adjoining quadrilateral

Answer

To find the perimeter of the given quadrilateral, we follow these steps:

### Step-by-Step Solution:

1. **Identify the Quadrilateral**: Let's denote the quadrilateral as ABCD.

2. **Label the Sides**: Assign lengths to the sides of the quadrilateral:
- Let side AB = p
- Let side BC = q
- Let side CD = r
- Let side DA = s

3. **Write the Perimeter Formula**: The perimeter (P) of a quadrilateral is the sum of the lengths of all its sides. Therefore, we can express the perimeter as:
\[ P = AB + BC + CD + DA \]

4. **Substitute the Values**: Substitute the lengths we assigned to the sides:
\[ P = p + q + r + s \]

5. **Conclusion**: The perimeter of the quadrilateral ABCD is given by the expression \( P = p + q + r + s \).