| Exam Board | WJEC |
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| Module | Unit 3 (Unit 3) |
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| Session | Specimen |
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| Topic | Arithmetic Sequences and Series |
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6. The lengths of the sides of a fifteen-sided plane figure form an arithmetic sequence. The perimeter of the figure is 270 cm and the length of the largest side is eight times that of the smallest side. Find the length of the smallest side.