Sure! Let’s solve each problem step by step.
We are given 12 rectangles (some are squares, which are special rectangles), and for each, we need to calculate:
-
Perimeter = 2 × (length + width)
-
Area = length × width
Units must be kept consistent — we’ll write the answers with correct units.
---
(1) Dimensions: 6 mm × 3 mm
- Perimeter = 2 × (6 + 3) = 2 × 9 =
18 mm
- Area = 6 × 3 =
18 mm²
---
(2) Dimensions: 7 m × 3 m
- Perimeter = 2 × (7 + 3) = 2 × 10 =
20 m
- Area = 7 × 3 =
21 m²
---
(3) Dimensions: 8 cm × 7 cm
- Perimeter = 2 × (8 + 7) = 2 × 15 =
30 cm
- Area = 8 × 7 =
56 cm²
---
(4) Dimensions: 6 cm × 5 cm
- Perimeter = 2 × (6 + 5) = 2 × 11 =
22 cm
- Area = 6 × 5 =
30 cm²
---
(5) Dimensions: 4 m × 2 m
- Perimeter = 2 × (4 + 2) = 2 × 6 =
12 m
- Area = 4 × 2 =
8 m²
---
(6) Dimensions: 8 cm × 5 cm
- Perimeter = 2 × (8 + 5) = 2 × 13 =
26 cm
- Area = 8 × 5 =
40 cm²
---
(7) Dimensions: 10 mm × 8 mm
- Perimeter = 2 × (10 + 8) = 2 × 18 =
36 mm
- Area = 10 × 8 =
80 mm²
---
(8) Dimensions: 8 cm × 6 cm
- Perimeter = 2 × (8 + 6) = 2 × 14 =
28 cm
- Area = 8 × 6 =
48 cm²
---
(9) Dimensions: 9 cm × 7 cm
- Perimeter = 2 × (9 + 7) = 2 × 16 =
32 cm
- Area = 9 × 7 =
63 cm²
---
(10) Dimensions: 10 m × 2 m
- Perimeter = 2 × (10 + 2) = 2 × 12 =
24 m
- Area = 10 × 2 =
20 m²
---
(11) Dimensions: 6 mm × 2 mm
- Perimeter = 2 × (6 + 2) = 2 × 8 =
16 mm
- Area = 6 × 2 =
12 mm²
---
(12) Dimensions: 5 mm × 2 mm
- Perimeter = 2 × (5 + 2) = 2 × 7 =
14 mm
- Area = 5 × 2 =
10 mm²
---
##
✔ Final Answers:
(1)
Perimeter:
18 mm
Area:
18 mm²
(2)
Perimeter:
20 m
Area:
21 m²
(3)
Perimeter:
30 cm
Area:
56 cm²
(4)
Perimeter:
22 cm
Area:
30 cm²
(5)
Perimeter:
12 m
Area:
8 m²
(6)
Perimeter:
26 cm
Area:
40 cm²
(7)
Perimeter:
36 mm
Area:
80 mm²
(8)
Perimeter:
28 cm
Area:
48 cm²
(9)
Perimeter:
32 cm
Area:
63 cm²
(10)
Perimeter:
24 m
Area:
20 m²
(11)
Perimeter:
16 mm
Area:
12 mm²
(12)
Perimeter:
14 mm
Area:
10 mm²
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Let me know if you’d like a printable version or explanation of formulas!
Parent Tip: Review the logic above to help your child master the concept of worksheet works calculating area and perimeter answers.
