Предмет: Математика, автор: AidanGallagerFan1

1)Найдите сторону квадрата, если его площадь равна 2,89 см2.

2)Найдите площадь прямоугольника, если смежные стороны прямоугольника равны 2,5 см и 3,2 см.

Зарание спасибо)

Ответы

Автор ответа: sofiyavictoria
1

Ответ:

Пошаговое объяснение:

1).  S=a^2 ⇒ a=√S=√2,89=1,7 см - сторона квадрата

2). S=a*b=2,5*3,2=8 кв. см


AidanGallagerFan1: простите,а можно для пятого класса (√) мы такое еще не проходили(
Автор ответа: imstydent
3

1) S = a²

a = \sqrt{2,89} = 1,7 см

Ответ: 1,7 см

2) S = a · b

a = 2,5 см

b = 3,2 см

S = 2,5 · 3,2 = 8 см²

Ответ: 8 см²

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