To find the area of each rectangle, we use the formula for the area of a rectangle:
\[
\text{Area} = \text{length} \times \text{width}
\]
Let's solve each problem step by step.
---
Problem 1
- Length: 8 m
- Width: 7 m
\[
\text{Area} = 8 \, \text{m} \times 7 \, \text{m} = 56 \, \text{m}^2
\]
Answer: \( A = 56 \, \text{m}^2 \)
---
Problem 2
- Length: 8 cm
- Width: 8 cm
\[
\text{Area} = 8 \, \text{cm} \times 8 \, \text{cm} = 64 \, \text{cm}^2
\]
Answer: \( A = 64 \, \text{cm}^2 \)
---
Problem 3
- Length: 9 m
- Width: 6 m
\[
\text{Area} = 9 \, \text{m} \times 6 \, \text{m} = 54 \, \text{m}^2
\]
Answer: \( A = 54 \, \text{m}^2 \)
---
Problem 4
- Length: 10 cm
- Width: 7 cm
\[
\text{Area} = 10 \, \text{cm} \times 7 \, \text{cm} = 70 \, \text{cm}^2
\]
Answer: \( A = 70 \, \text{cm}^2 \)
---
Problem 5
- Length: 20 m
- Width: 13 m
\[
\text{Area} = 20 \, \text{m} \times 13 \, \text{m} = 260 \, \text{m}^2
\]
Answer: \( A = 260 \, \text{m}^2 \)
---
Problem 6
- Length: 120 cm
- Width: 13 cm
\[
\text{Area} = 120 \, \text{cm} \times 13 \, \text{cm} = 1560 \, \text{cm}^2
\]
Answer: \( A = 1560 \, \text{cm}^2 \)
---
Problem 7
- Length: 7 cm
- Width: 7 cm
\[
\text{Area} = 7 \, \text{cm} \times 7 \, \text{cm} = 49 \, \text{cm}^2
\]
Answer: \( A = 49 \, \text{cm}^2 \)
---
Problem 8
- Length: 6 cm
- Width: 5 cm
\[
\text{Area} = 6 \, \text{cm} \times 5 \, \text{cm} = 30 \, \text{cm}^2
\]
Answer: \( A = 30 \, \text{cm}^2 \)
---
Problem 9
- Length: 11 cm
- Width: 9 cm
\[
\text{Area} = 11 \, \text{cm} \times 9 \, \text{cm} = 99 \, \text{cm}^2
\]
Answer: \( A = 99 \, \text{cm}^2 \)
---
Problem 10
- Length: 3.5 m
- Width: 2 m
\[
\text{Area} = 3.5 \, \text{m} \times 2 \, \text{m} = 7 \, \text{m}^2
\]
Answer: \( A = 7 \, \text{m}^2 \)
---
Problem 11
- Length: 80 cm
- Width: 5 cm
\[
\text{Area} = 80 \, \text{cm} \times 5 \, \text{cm} = 400 \, \text{cm}^2
\]
Answer: \( A = 400 \, \text{cm}^2 \)
---
Problem 12
- Length: 25 m
- Width: 18 m
\[
\text{Area} = 25 \, \text{m} \times 18 \, \text{m} = 450 \, \text{m}^2
\]
Answer: \( A = 450 \, \text{m}^2 \)
---
Final Answers:
\[
\boxed{
\begin{array}{ll}
1. & 56 \, \text{m}^2 \\
2. & 64 \, \text{cm}^2 \\
3. & 54 \, \text{m}^2 \\
4. & 70 \, \text{cm}^2 \\
5. & 260 \, \text{m}^2 \\
6. & 1560 \, \text{cm}^2 \\
7. & 49 \, \text{cm}^2 \\
8. & 30 \, \text{cm}^2 \\
9. & 99 \, \text{cm}^2 \\
10. & 7 \, \text{m}^2 \\
11. & 400 \, \text{cm}^2 \\
12. & 450 \, \text{m}^2 \\
\end{array}
}
\]
Parent Tip: Review the logic above to help your child master the concept of area of rectangle worksheet.
