Mathematics, 22.07.2021 14:00 atiyawhite7863

Tam giác có chu vi 14cm, bán kính đường tròn nội tiếp là 3cm. Khi đó S tam giác là

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Tam giác có chu vi 14cm, bán kính đường tròn nội tiếp là 3cm. Khi đó S tam giác là...

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