Предмет: Геометрия, автор: posokhovilya

авсд--р/б трапеция . Найти:площадь . Попрошу давать решение в коментарии , видео не загружается . Дам балов столько сколько смогу .

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natalyabryukhova: Может что-то еще дано? Угол?

Ответы

Автор ответа: muradahmedov2003
0

1) Если ABCD - р/б трапеция => AB = CD;

2) Sabcd = (BC + AD) / 2 * BM;

3) Дополнительное построение: СH - высота; => CH = BM = 12;

4) Фигура BCHM - квадрат => BC = CH = MH = BM = 12; => Sabcd = (20 + 12) / 2 * 12 = 16 * 12 = 192

Ответ: 192

natalyabryukhova: А почему Фигура BCHM - квадрат?
Автор ответа: natalyabryukhova
0

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