Предмет: Математика, автор: Аноним

Найди площадь прямоугольника ABCD по указанным размерам. Реши задачу, составляя выражение. Постарайся найти два способа. Заранее спасибо

Приложения:

Ответы

Автор ответа: Виктоия11
0
S=224
Вс= 28
Cd= 8 ( так как квадрат и его стороны равны)
Автор ответа: Виктоия11
0
2 способ
Найдём площадь квадрата и площадь прямоугольника и сложим их
Автор ответа: Аноним
0
Я не могу напиши
Автор ответа: Аноним
0
Родители говорят учи
Автор ответа: xxxeol
0
Площадь прямоугольника по формуле
S = a *b
BM = a =20 м - длина
AB = b = 8 м - ширина
Площадь квадрата по по формуле
S = a²
MC= CD = a = 8 
Два варианта
1 - сначала сложить стороны, потом умножить
(20+8)*8 = 28*8 = 224 м² - ответ
или по действиям - ВС = 20 +8 = 28 = а.
2 - сначала умножить, потом сложить площади.
S = 20*8 + 8*8 = 160 + 64 = 224 м² - ответ
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