Предмет: Геометрия, автор: sharok388

Стороны треугольника равны 12см и 9см а угол между ними 30градусов найти площадь треугольника

Ответы

Автор ответа: minaomi954

а=12см, b=9см, с=12×1/2=6, т.к. лежит против угла 30°.

S∆=12×9×6=648см^2

Ответ: 648см^2

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