To find the area of each rectangle, we use the formula:
Area = length × width
We’ll go through each problem one by one.
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Problem 1:
Length = 9 cm, Width = 7 cm
Area = 9 × 7 =
63 cm²
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Problem 2:
Length = 8 mm, Width = 4 mm
Area = 8 × 4 =
32 mm²
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Problem 3:
Length = 6 km, Width = 3 km
Area = 6 × 3 =
18 km²
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Problem 4:
Length = 15 in, Width = 5 in
Area = 15 × 5 =
75 in²
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Problem 5:
Length = 11 ft, Width = 7 ft (even though it’s tilted, sides are still length and width)
Area = 11 × 7 =
77 ft²
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Problem 6:
Length = 9 yd, Width = 5 yd
Area = 9 × 5 =
45 yd²
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Problem 7:
Length = 12 km, Width = 6 km
Area = 12 × 6 =
72 km²
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Problem 8:
Length = 6 m, Width = 5 m
Area = 6 × 5 =
30 m²
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All calculations checked — multiplication is correct for each pair.
Final Answer:
1. 63 cm²
2. 32 mm²
3. 18 km²
4. 75 in²
5. 77 ft²
6. 45 yd²
7. 72 km²
8. 30 m²
Parent Tip: Review the logic above to help your child master the concept of 3rd grade area worksheets.
