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Ответ

Ответ дан
akaman32

Ответ:

D) 3см​

Объяснение:

Площадь трапеции равна произведению полусуммы ее оснований (a, b) на высоту (h)

Значит основание b=S÷h·2-a=25÷5·2-7=3 см

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