Question

2. Площадь квадрата - 81 дм”. Найди сторону. Вырази ответ в сантиметрах.​

Answer 1

Ответ:

9 дм, 90 см.

Пошаговое объяснение:

√81=9, следовательно, сторона равна 9 дм.

В сантиметрах это будет 90 см.

Answer 2

Пошаговое объяснение:

Площадь квадрата = a^2, отсюда выразим сторону, a=кореньS

a=корень81=9(дм)=90см

Answer 3

Finding the Side Length of a Square

To find the side length of a square when the area is given, we can use the formula:

Side Length = √(Area)

In this case, the area of the square is given as 81 dm². We need to convert this to centimeters (cm) before finding the side length.

To convert from dm to cm, we know that 1 dm is equal to 10 cm. Therefore, we can multiply the area by 100 to convert it to cm².

Let's calculate the side length:

Area of the square = 81 dm² = 81 * 100 cm² = 8100 cm²

Now, we can find the side length by taking the square root of the area:

Side Length = √(8100 cm²) = 90 cm

Therefore, the side length of the square is 90 cm.