Perimeter of rectangles and squares worksheet for math practice.

Let's solve the problem step by step.

We are asked to find the perimeter of each rectangle and square. The perimeter of a rectangle is calculated using the formula:

$$
\text{Perimeter} = 2 \times (\text{length} + \text{width})
$$

For a square, all sides are equal, so:

$$
\text{Perimeter} = 4 \times \text{side}
$$

Now let’s go through each shape one by one.

---

1. Rectangle: 18 cm × 13 cm

$$
P = 2 \times (18 + 13) = 2 \times 31 = 62\ \text{cm}
$$

---

2. Rectangle: 9 cm × 8 cm

$$
P = 2 \times (9 + 8) = 2 \times 17 = 34\ \text{cm}
$$

---

3. Square: 15 cm × 15 cm

$$
P = 4 \times 15 = 60\ \text{cm}
$$

---

4. Rectangle: 13 cm × 13 cm

This is actually a square since both sides are equal.
$$
P = 4 \times 13 = 52\ \text{cm}
$$

---

5. Rectangle: 13 cm × 9 cm

$$
P = 2 \times (13 + 9) = 2 \times 22 = 44\ \text{cm}
$$

---

6. Rectangle: 7 cm × 6 cm

$$
P = 2 \times (7 + 6) = 2 \times 13 = 26\ \text{cm}
$$

---

7. Rectangle: 15 cm × 14 cm

$$
P = 2 \times (15 + 14) = 2 \times 29 = 58\ \text{cm}
$$

---

8. Rectangle: 8 cm × 9 cm

$$
P = 2 \times (8 + 9) = 2 \times 17 = 34\ \text{cm}
$$

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✔ Final Answers:

1. 62 cm
2. 34 cm
3. 60 cm
4. 52 cm
5. 44 cm
6. 26 cm
7. 58 cm
8. 34 cm

Let me know if you'd like this in a printable format or need help with any specific step!