Предмет: Математика, автор: celuykoalina1

УМОЛЯЮ!!!!! СПИСИТЕ!!!! ПОМОГИТЕ!!!!!!!! ЗАРАНЕЕ СПАСИБО!!!! задача вот фотка номер 6 б)

Приложения:
celuykoalina1: можете ещё формулы сказать
celuykoalina1: и чему равно а- в- что неизвестно

Ответы

Автор ответа: ЛогикаБезЛогики
2
(6+6)*2=24 см - площадь прямоугольника
6*2:2=6 см - площадь незакрашенного треугольника
24-6=18 см - площадь закрашенной фигуры
Ответ: 18 см
Формулы:
S прямоугольника=ab
S треугольника=ab:2
a и b - смежные стороны

celuykoalina1: Спасибо огромное спасибо
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TRANSPORT BY SEA

Transport by sea is bound to be comparatively slow, but it is also comparatively cheap. A typical ship's speed is about 25 knots (less than 30 miles per hour), so it can take about six days for a cargo ship to cross the Atlantic Ocean. One of the problems associated with carriage of goods by sea is that the cargoes can only be landed at ports, so trains or lorries may be required as support transport. This adds both to the cost and the time taken.
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