Предмет: Геометрия, автор: danechkaivanov4

Средняя линия трапеции равна 19 ,а одно из оснований равно 7. Найдите другое основание трапеции .

Ответы

Автор ответа: kolobok1431

Средняя линия трапеции равна полусумме оснований, отсюда

a, b - основания
c - средняя линия
b = 2c - a
b = 2 * 19 - 7 = 38 - 7 = 31
Ответ b = 31

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