Let’s solve each problem step by step.
We are given rectangles with dimensions (length × width), and we need to scale them up by a certain factor — either 4 times or 9 times the current size. That means we multiply both the length and the width by that number.
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Problem 1:
Original: 4.3 × 2.7
Scale factor: 9
New dimensions = 4.3 × 9 and 2.7 × 9
→ 4.3 × 9 = 38.7
→ 2.7 × 9 = 24.3
✔ Answer:
38.7 × 24.3
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Problem 2:
Original: 5.3 × 5.7
Scale factor: 4
New dimensions = 5.3 × 4 and 5.7 × 4
→ 5.3 × 4 = 21.2
→ 5.7 × 4 = 22.8
✔ Answer:
21.2 × 22.8
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Problem 3:
Original: 6.9 × 5.2
Scale factor: 4
New dimensions = 6.9 × 4 and 5.2 × 4
→ 6.9 × 4 = 27.6
→ 5.2 × 4 = 20.8
✔ Answer:
27.6 × 20.8
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Problem 4:
Original: 2.6 × 3.2
Scale factor: 9
New dimensions = 2.6 × 9 and 3.2 × 9
→ 2.6 × 9 = 23.4
→ 3.2 × 9 = 28.8
✔ Answer:
23.4 × 28.8
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Problem 5:
Original: 6.4 × 5.1
Scale factor: 4
New dimensions = 6.4 × 4 and 5.1 × 4
→ 6.4 × 4 = 25.6
→ 5.1 × 4 = 20.4
✔ Answer:
25.6 × 20.4
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Problem 6:
Original: 3.5 × 6.9
Scale factor: 4
New dimensions = 3.5 × 4 and 6.9 × 4
→ 3.5 × 4 = 14.0
→ 6.9 × 4 = 27.6
✔ Answer:
14.0 × 27.6 (or just 14 × 27.6)
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Final Answers:
1. 38.7 × 24.3
2. 21.2 × 22.8
3. 27.6 × 20.8
4. 23.4 × 28.8
5. 25.6 × 20.4
6. 14.0 × 27.6
Final Answer:
1. 38.7 × 24.3
2. 21.2 × 22.8
3. 27.6 × 20.8
4. 23.4 × 28.8
5. 25.6 × 20.4
6. 14.0 × 27.6
Parent Tip: Review the logic above to help your child master the concept of scale drawing worksheet 7th grade.
