Предмет: Математика, автор: tanyashutenko1

Помогите пожалуйста!Даю 79 баллов. Определите площадь каждого из многоугольников (3 рис. 12.29 ) .

Приложения:

Ответы

Автор ответа: tausinv
0
Первая фигура - трапеция

Sтрапеции = 1/2 * (a + b) * h, где a и b - основания, а h - высота

0.5 * (5 + 3) * 5 = 20 кв.ед

Вторая фигура - ромб.

Sромба = 1.2 * d1 * d2 где d1 и d2 - диагонали

0.5 * 4  *6 = 12 кв. ед

Третья фигура - два треугольника и прямоугольник.

S = 0.5 *5 * 2 + 2 * 5 +  0.5 *5 * 2 = 5*2 + 5*2 = 20 кв ед
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Fill in the gaps:

1. Keri: No, there are two tatami mat
.

2. My roommate gets home before I do and she likes to
so often she's cooked dinner for me.

3. Keri: Last night she made curry. I think it was an
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