Perimeter worksheets for calculating the perimeter of different shapes, suitable for classroom use.

It looks like you've uploaded a worksheet with multiple perimeter calculation problems. The worksheet is divided into three sections, each containing several shapes (mostly polygons), and the task is to calculate the perimeter of each shape by adding up the lengths of all sides.

Since I can't view or analyze images directly, I’ll guide you through how to solve these types of problems step-by-step. If you can describe the specific shapes and side lengths from one or more of the problems, I can help calculate the perimeter for those.

But here’s a general approach:

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🔷 What is Perimeter?

The perimeter is the total distance around the edge of a 2D shape. You calculate it by adding up the lengths of all the sides.

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✔ Steps to Solve:

1. Identify all the side lengths of the shape.
2. Add them together.
3. Write the answer in the box provided.
4. Remember: units (like cm, m) should be included if given.

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📐 Example Problem:

Let’s say you have a rectangle with:
- Length = 10 cm
- Width = 5 cm

Perimeter = 2 × (Length + Width) = 2 × (10 + 5) = 2 × 15 = 30 cm

Or just add all sides: 10 + 5 + 10 + 5 = 30 cm

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⭐ For Irregular Shapes:

Just add up all the individual side lengths.

For example, a pentagon with sides: 6 cm, 8 cm, 7 cm, 9 cm, 5 cm
Perimeter = 6 + 8 + 7 + 9 + 5 = 35 cm

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🔸 For Regular Polygons (all sides equal):

If all sides are equal, multiply the length of one side by the number of sides.

Example: A regular hexagon with each side = 4 cm
Perimeter = 6 × 4 = 24 cm

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🌟 Special Note:

Some shapes (like stars) may have repeating side lengths. Look carefully — sometimes only a few measurements are labeled, but symmetry implies others are equal.

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💡 Tips:

- Make sure all units are consistent (e.g., convert mm to cm if needed).
- Double-check that you didn’t miss any sides.
- Use the formula for common shapes:
- Rectangle: P = 2(l + w)
- Square: P = 4s
- Triangle: P = a + b + c
- Pentagon: P = sum of 5 sides
- Hexagon: P = sum of 6 sides

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🧩 Let's Try One Together:

Suppose problem #1 on the left page has a pentagon with sides:
5 cm, 5 cm, 5 cm, 5 cm, 5 cm → All equal!

Then: Perimeter = 5 × 5 = 25 cm

Or if sides are: 6 cm, 8 cm, 5 cm, 7 cm, 4 cm → Add: 6+8+5+7+4 = 30 cm

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👉 Please provide the specific measurements from any of the shapes (e.g., "Problem 1: sides are 5cm, 5cm, 5cm, 5cm, 5cm"), and I’ll calculate the perimeter for you.

Alternatively, if you can describe which shapes are in each section, I can walk you through solving them all!