Let’s solve each rectangle one by one. Remember:
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Area = length × width
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Perimeter = 2 × (length + width)
We’ll calculate both for each problem.
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Problem 1:
Rectangle with sides 6 cm and 2 cm
→ Area = 6 × 2 =
12 square cm
→ Perimeter = 2 × (6 + 2) = 2 × 8 =
16 cm
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Problem 2:
Rectangle with sides 5 mm and 3 mm
→ Area = 5 × 3 =
15 square mm
→ Perimeter = 2 × (5 + 3) = 2 × 8 =
16 mm
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Problem 3:
Rectangle with sides 9 m and 5 m
→ Area = 9 × 5 =
45 square m
→ Perimeter = 2 × (9 + 5) = 2 × 14 =
28 m
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Problem 4:
Rectangle with sides 8 ft and 3 ft
→ Area = 8 × 3 =
24 square ft
→ Perimeter = 2 × (8 + 3) = 2 × 11 =
22 ft
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Problem 5:
Square (special rectangle!) with all sides 6 cm
→ Area = 6 × 6 =
36 square cm
→ Perimeter = 2 × (6 + 6) = 2 × 12 =
24 cm
*(Or just 4 × 6 = 24 cm — same thing!)*
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Problem 6:
Rectangle with sides 8 km and 5 km
→ Area = 8 × 5 =
40 square km
→ Perimeter = 2 × (8 + 5) = 2 × 13 =
26 km
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Final Answer:
1) Area = 12 square cm, Perimeter = 16 cm
2) Area = 15 square mm, Perimeter = 16 mm
3) Area = 45 square m, Perimeter = 28 m
4) Area = 24 square ft, Perimeter = 22 ft
5) Area = 36 square cm, Perimeter = 24 cm
6) Area = 40 square km, Perimeter = 26 km
Parent Tip: Review the logic above to help your child master the concept of area and perimeter rectangle worksheet.
