Let’s solve each problem step by step.
We are given the
perimeter of a rectangle and one side length (either width or height). We need to find the
missing side.
Remember:
For a rectangle,
Perimeter = 2 × (width + height)
So, if we know perimeter and one side, we can find the other:
→ Divide perimeter by 2 → that gives you (width + height)
→ Subtract the known side → that gives you the missing side
---
Let’s go one by one:
1. Perimeter = 26, Width = 5
Half perimeter = 26 ÷ 2 = 13
Height = 13 - 5 =
8
2. Perimeter = 24, Height = 7
Half perimeter = 24 ÷ 2 = 12
Width = 12 - 7 =
5
3. Perimeter = 14, Width = 2
Half perimeter = 14 ÷ 2 = 7
Height = 7 - 2 =
5
4. Perimeter = 22, Height = 9
Half perimeter = 22 ÷ 2 = 11
Width = 11 - 9 =
2
5. Perimeter = 20, Width = 4
Half perimeter = 20 ÷ 2 = 10
Height = 10 - 4 =
6
6. Perimeter = 18, Height = 5
Half perimeter = 18 ÷ 2 = 9
Width = 9 - 5 =
4
7. Perimeter = 38, Height = 8
Half perimeter = 38 ÷ 2 = 19
Width = 19 - 8 =
11
8. Perimeter = 22, Width = 6
Half perimeter = 22 ÷ 2 = 11
Height = 11 - 6 =
5
9. Perimeter = 20, Height = 5
Half perimeter = 20 ÷ 2 = 10
Width = 10 - 5 =
5
10. Perimeter = 40, Width = 10
Half perimeter = 40 ÷ 2 = 20
Height = 20 - 10 =
10
11. Perimeter = 28, Height = 4
Half perimeter = 28 ÷ 2 = 14
Width = 14 - 4 =
10
12. Perimeter = 28, Width = 6
Half perimeter = 28 ÷ 2 = 14
Height = 14 - 6 =
8
13. Perimeter = 18, Width = 5
Half perimeter = 18 ÷ 2 = 9
Height = 9 - 5 =
4
14. Perimeter = 8, Height = 2
Half perimeter = 8 ÷ 2 = 4
Width = 4 - 2 =
2
15. Perimeter = 12, Width = 3
Half perimeter = 12 ÷ 2 = 6
Height = 6 - 3 =
3
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Final Answer:
1. 8
2. 5
3. 5
4. 2
5. 6
6. 4
7. 11
8. 5
9. 5
10. 10
11. 10
12. 8
13. 4
14. 2
15. 3
Parent Tip: Review the logic above to help your child master the concept of perimeter missing side worksheet.
