Question

10. Одна сторона прямокутника більша за іншу на 5 см. Знайдіть периметр прямокутника в дециметрах, якщо його менша сторона дорівнює 3 3/5 ДМ. якщо можна с поясненням​

Answer 1

Пошаговое объяснение:

3.5+5=8.5

(8.5+3.5)*2=24

Р=24

вроде правильно

Answer 2

To find the perimeter of a rectangle, we need to know the lengths of both sides. In this case, we are given that one side of the rectangle is 5 cm longer than the other side, and the smaller side is 3 3/5 DM (decimeters).

Let's start by converting the smaller side from decimeters to centimeters. Since 1 decimeter is equal to 10 centimeters, we can multiply the given length by 10 to convert it to centimeters.

3 3/5 DM = (3 + 3/5) * 10 cm = (18/5) * 10 cm = 36 cm

So, the smaller side of the rectangle is 36 cm.

Now, we know that the other side is 5 cm longer than the smaller side. Therefore, the larger side is:

36 cm + 5 cm = 41 cm

The perimeter of a rectangle is calculated by adding the lengths of all four sides. In this case, since we only have the lengths of two sides, we can use the formula:

Perimeter = 2 * (length + width)

Substituting the values we have:

Perimeter = 2 * (41 cm + 36 cm) = 2 * 77 cm = 154 cm

Finally, we need to convert the perimeter from centimeters to decimeters. Since 1 decimeter is equal to 10 centimeters, we can divide the perimeter by 10 to convert it to decimeters.

Perimeter in decimeters = 154 cm / 10 = 15.4 DM

Therefore, the perimeter of the rectangle, in decimeters, is 15.4 DM.

I hope this explanation helps! Let me know if you have any further questions.