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primary 6 | Maths
| Data Analysis
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Pls help for question 15b. Thanks.
Pattern 11 = 221 unshaded square.
2-8-5
3-12-13
4-16-25
5-20-41
6-24-61
7-28-85
8-32-113
9-36-145
10-40-181
11-44-221
Pattern 11 have 221 unshaded square.
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