Question

Ширина прямоугольника 50 см. Это на 3 дм меньше длины. Найдите площадь прямоугольника

Answer 1

Ответ:

0,4м²

Пошаговое объяснение:

Ширина-50 см

Длина-80 см(т.к. ширина на 3дм=30 см меньше)

S=50×80=4000см=40 м²

Ответ:S=0,4м²

Надеюсь помогла)

Answer 2

Calculation of Rectangle Area

To find the area of a rectangle, we need to know the length and width of the rectangle. In this case, we are given that the width of the rectangle is 50 cm, which is 3 dm (decimeters) less than the length.

Let's denote the length of the rectangle as L. According to the given information, we can write the following equation:

Width = Length - 3 dm

Converting the width from cm to dm, we have:

50 cm = (Length - 3) dm

To find the length, we can rearrange the equation:

Length = 50 cm + 3 dm

Now, we need to convert the length to cm to ensure consistent units:

Length = 50 cm + 3 dm = 50 cm + 3 * 10 cm = 50 cm + 30 cm = 80 cm

Therefore, the length of the rectangle is 80 cm.

To calculate the area of the rectangle, we use the formula:

Area = Length * Width

Substituting the values we have:

Area = 80 cm * 50 cm = 4000 cm^2

So, the area of the rectangle is 4000 cm^2.