Question

ПЕРИМЕТР ПРЯМОУГОЛЬНОГО БЛОКНОТА РАВЕН 36 СМ. МОЖЕТ ЛИ ЭТОТ БЛОКНОТ ИМЕТЬ ДЛИНУ 20 СМ?

Answer 1

Нет,так как формула P=a+a+b+b ,то есть ты сложишь длина+длина+ширина+ширина.А если длина 20 см,то 20+20=40,что уже больше 36.

Удачи!:)

Answer 2

Нет. 20см не помещается  в 36см, 2 раза.

Answer 3

Perimeter of a Rectangle Notebook

The perimeter of a rectangle is the sum of all its sides. To find the perimeter of a rectangle, you can use the formula: perimeter = 2 * (length + width).

In this case, we are given that the perimeter of the notebook is 36 cm. We want to determine if the notebook can have a length of 20 cm.

Let's calculate the width of the notebook first using the given information.

Step 1: Let's assume the length of the notebook is 20 cm. Step 2: We know that the perimeter is 36 cm. Step 3: Using the formula for the perimeter of a rectangle, we can write the equation: 36 = 2 * (20 + width). Step 4: Simplifying the equation, we have: 36 = 40 + 2 * width. Step 5: Subtracting 40 from both sides, we get: -4 = 2 * width. Step 6: Dividing both sides by 2, we find: -2 = width.

According to the calculation, the width of the notebook would be -2 cm. However, a negative width doesn't make sense in this context. Therefore, it is not possible for the notebook to have a length of 20 cm if the perimeter is 36 cm.

Please note that the calculations are based on the assumption that the notebook is a rectangle and follows the formula for calculating the perimeter of a rectangle. If there are any additional constraints or information, please let me know.