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The image you provided contains a worksheet asking to find the perimeter of various quadrilaterals. I'll guide you through solving the first few, and you can apply the same method to the rest. 

The perimeter \( P \) of any quadrilateral is calculated by summing the lengths of all its sides:

\[
P = \text{side}_1 + \text{side}_2 + \text{side}_3 + \text{side}_4
\]

Let's go through the first few examples:

1. **First Shape (Rectangle):**
   - Sides: 8.4 cm, 18.6 cm
   - Perimeter: \( 2 \times (8.4 + 18.6) = 2 \times 27 = 54 \, \text{cm} \)

2. **Second Shape (Rectangle):**
   - Sides: 6 cm, 11 cm
   - Perimeter: \( 2 \times (6 + 11) = 2 \times 17 = 34 \, \text{cm} \)

3. **Third Shape (Parallelogram):**
   - Sides: 4 cm, 12 cm
   - Perimeter: \( 2 \times (4 + 12) = 2 \times 16 = 32 \, \text{cm} \)

Would you like me to continue solving the rest, or do you have any specific questions? Let me know if you'd like further clarification!

Here are some follow-up questions to expand your understanding:

1. How would you find the perimeter of a square?
2. What is the difference in perimeter calculation between a rectangle and a parallelogram?
3. Can the perimeter of a quadrilateral change if only one side length changes?
4. How can you determine whether a quadrilateral is regular (all sides equal)?
5. What other types of polygons have perimeters calculated similarly to quadrilaterals?

**Tip**: When calculating the perimeter of any shape, ensure that all side lengths are provided or can be inferred.

Find the perimeter of each quadrilateral in the worksheet.

Learn how to find the perimeter of quadrilaterals with this detailed worksheet solution. The problems cover various shapes such as rectangles and parallelograms, using key formulas for perimeter calculation. Suitable for students in Grades 5-7.

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