Let's solve each rectangle step by step using the formulas:
Formulas:
-
Area of a rectangle = length × width
-
Perimeter of a rectangle = 2 × (length + width)
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1) Rectangle: 6 cm × 2 cm
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Area = 6 cm × 2 cm =
12 square cm
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Perimeter = 2 × (6 + 2) = 2 × 8 =
16 cm
✔ Answer:
Area =
12 square cm
Perimeter =
16 cm
---
2) Rectangle: 5 mm × 3 mm
-
Area = 5 mm × 3 mm =
15 square mm
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Perimeter = 2 × (5 + 3) = 2 × 8 =
16 mm
✔ Answer:
Area =
15 square mm
Perimeter =
16 mm
---
3) Rectangle: 5 m × 9 m
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Area = 5 m × 9 m =
45 square m
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Perimeter = 2 × (5 + 9) = 2 × 14 =
28 m
✔ Answer:
Area =
45 square m
Perimeter =
28 m
---
4) Rectangle: 8 ft × 3 ft
-
Area = 8 ft × 3 ft =
24 square ft
-
Perimeter = 2 × (8 + 3) = 2 × 11 =
22 ft
✔ Answer:
Area =
24 square ft
Perimeter =
22 ft
---
5) Square: 6 cm × 6 cm (It’s a square, which is a special rectangle)
-
Area = 6 cm × 6 cm =
36 square cm
-
Perimeter = 2 × (6 + 6) = 2 × 12 =
24 cm
✔ Answer:
Area =
36 square cm
Perimeter =
24 cm
---
6) Rectangle: 8 km × 5 km
-
Area = 8 km × 5 km =
40 square km
-
Perimeter = 2 × (8 + 5) = 2 × 13 =
26 km
✔ Answer:
Area =
40 square km
Perimeter =
26 km
---
✔ Final Answers:
| Problem | Area | Perimeter |
|--------|------|-----------|
| 1) | 12 sq cm | 16 cm |
| 2) | 15 sq mm | 16 mm |
| 3) | 45 sq m | 28 m |
| 4) | 24 sq ft | 22 ft |
| 5) | 36 sq cm | 24 cm |
| 6) | 40 sq km | 26 km |
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Parent Tip: Review the logic above to help your child master the concept of 5th grade area and perimeter worksheet.
