Question

Объясните такие задачи как найте сторону прямоугольника если периметр 8дм7см а дугая сторона 2дм4см

Answer 1

8дм7см=807см
2дм4см=204см
Пусть х=высота,тогда Р=204*2+х*2
204*2+х*2=807
х*2=807-204*2
х*2=807-408
х*2=399
х=399\2
х=199(остаток 1)
Ответ:вторая сторона=199дм1см

Answer 2

Finding the Length of the Other Side of a Rectangle

To find the length of the other side of a rectangle when the perimeter and one side length are given, you can use the formula for the perimeter of a rectangle and then solve for the unknown side length.

The formula for the perimeter of a rectangle is: Perimeter = 2 * (length + width)

Given: - Perimeter = 8 dm 7 cm - One side (width) = 2 dm 4 cm

We can use the given information to find the length of the rectangle.

Calculation

First, convert all measurements to the same unit (centimeters) for consistency: - 1 dm = 10 cm

Given: - Perimeter = 8 dm 7 cm = 87 cm - One side (width) = 2 dm 4 cm = 24 cm

Now, we can use the formula for the perimeter to find the length: 87 = 2 * (length + 24)

Solving for the length: 87 = 2 * length + 48 2 * length = 87 - 48 2 * length = 39 length = 39 / 2 length = 19.5 cm

Answer

The length of the rectangle is 19.5 cm.