To solve the problem of finding the areas of the given squares and rectangles, we will use the following formulas:
1.
Area of a Square:
\[
\text{Area} = \text{side} \times \text{side}
\]
2.
Area of a Rectangle:
\[
\text{Area} = \text{length} \times \text{width}
\]
Let's calculate the area for each shape step by step.
---
1. Square with side = 9 cm
- Formula: \( \text{Area} = \text{side} \times \text{side} \)
- Given: Side = 9 cm
\[
\text{Area} = 9 \times 9 = 81 \, \text{cm}^2
\]
---
2. Rectangle with length = 5 cm and width = 4 cm
- Formula: \( \text{Area} = \text{length} \times \text{width} \)
- Given: Length = 5 cm, Width = 4 cm
\[
\text{Area} = 5 \times 4 = 20 \, \text{cm}^2
\]
---
3. Square with side = 6 cm
- Formula: \( \text{Area} = \text{side} \times \text{side} \)
- Given: Side = 6 cm
\[
\text{Area} = 6 \times 6 = 36 \, \text{cm}^2
\]
---
4. Rectangle with length = 8 cm and width = 5 cm
- Formula: \( \text{Area} = \text{length} \times \text{width} \)
- Given: Length = 8 cm, Width = 5 cm
\[
\text{Area} = 8 \times 5 = 40 \, \text{cm}^2
\]
---
5. Rectangle with length = 12 cm and width = 3 cm
- Formula: \( \text{Area} = \text{length} \times \text{width} \)
- Given: Length = 12 cm, Width = 3 cm
\[
\text{Area} = 12 \times 3 = 36 \, \text{cm}^2
\]
---
Final Answers
1. \( \boxed{81} \)
2. \( \boxed{20} \)
3. \( \boxed{36} \)
4. \( \boxed{40} \)
5. \( \boxed{36} \)
These are the areas of the given squares and rectangles.
Parent Tip: Review the logic above to help your child master the concept of area of rectangle worksheet.
