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| kolmionmuotoiset yhdesti tai kahdesti yhdistetyt lohkot (pojedynczo lub podwójnie) | |||
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| kolmionmuotoiset yhdesti tai kahdesti yhdistetyt lohkot | |||
| bloki trójkątne powiązane: 1 phrase in 1 subject |
| Mathematics | 1 |
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