Sure! Let’s solve each of the six rectangle problems one by one. We’ll calculate
Area and
Perimeter using the standard formulas:
>
✔ Area of a rectangle = Length × Width
>
✔ Perimeter of a rectangle = 2 × (Length + Width)
---
Problem 1
Dimensions:
5 cm and
1.5 cm
-
Area = 5 × 1.5 =
7.5 cm²
-
Perimeter = 2 × (5 + 1.5) = 2 × 6.5 =
13 cm
✔ Answer:
Area =
7.5 cm²
Perimeter =
13 cm
---
Problem 2
Dimensions:
5.5 m and
3 m
-
Area = 5.5 × 3 =
16.5 m²
-
Perimeter = 2 × (5.5 + 3) = 2 × 8.5 =
17 m
✔ Answer:
Area =
16.5 m²
Perimeter =
17 m
---
Problem 3
Dimensions:
2 ½ ft and
5 ft
*(Note: 2 ½ ft = 2.5 ft)*
-
Area = 2.5 × 5 =
12.5 ft²
-
Perimeter = 2 × (2.5 + 5) = 2 × 7.5 =
15 ft
✔ Answer:
Area =
12.5 ft²
Perimeter =
15 ft
---
Problem 4
Dimensions:
7 cm and
20 cm
-
Area = 7 × 20 =
140 cm²
-
Perimeter = 2 × (7 + 20) = 2 × 27 =
54 cm
✔ Answer:
Area =
140 cm²
Perimeter =
54 cm
---
Problem 5
Dimensions:
8 cm and
3 ¼ cm
*(Note: 3 ¼ cm = 3.25 cm)*
-
Area = 8 × 3.25 =
26 cm²
-
Perimeter = 2 × (8 + 3.25) = 2 × 11.25 =
22.5 cm
✔ Answer:
Area =
26 cm²
Perimeter =
22.5 cm
---
Problem 6
Dimensions:
30 m and
20 m
-
Area = 30 × 20 =
600 m²
-
Perimeter = 2 × (30 + 20) = 2 × 50 =
100 m
✔ Answer:
Area =
600 m²
Perimeter =
100 m
---
## 📝 Final Answers Summary:
| Problem | Area | Perimeter |
|---------|----------------|---------------|
| 1 | 7.5 cm² | 13 cm |
| 2 | 16.5 m² | 17 m |
| 3 | 12.5 ft² | 15 ft |
| 4 | 140 cm² | 54 cm |
| 5 | 26 cm² | 22.5 cm |
| 6 | 600 m² | 100 m |
---
💡
Tip: Always double-check units — area is always in square units (cm², m², ft²), and perimeter is in linear units (cm, m, ft). Also, convert mixed numbers to decimals or improper fractions before multiplying for accuracy.
Let me know if you’d like this formatted as a worksheet answer key! 😊
Parent Tip: Review the logic above to help your child master the concept of area of rectangles worksheet.
