Предмет: Геометрия, автор: Настик13

Дано: BO = AO, OC = 2OD, Saoc = 12 см^2 Найти: Sbod

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Автор ответа: emerald0101

0

Если угол одного треугольника равен углу другого треугольника то площади этих треугольников относятся как произведения сторон заключающий равные углы:
$S_{BOD}:S_{AOC}= frac{BO*OD}{AO*OC}= frac{OD}{2OD}= frac{1}{2}$
$S_{BOD}= frac{1}{2}* S_{AOC}=6$

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