Question

Периметр параллелограма равен 126см.Найдите его стороны,если две из них относятся как 4:5

Answer 1

2(4x+5x)=126
4x+5x=63
9x=63
x=7
Одна сторона равна 4x=4*7=28
Вторая сторона 5x=5*7=35
Ответ: 1 - 28       2 - 35

Answer 2

Perimeter of a Parallelogram

To find the sides of a parallelogram when the perimeter is given and two sides are in a ratio of 4:5, we can follow these steps:

1. Let's assume the two sides of the parallelogram are 4x and 5x, where x is a common factor. 2. The perimeter of a parallelogram is the sum of all its sides. In this case, the perimeter is given as 126 cm. 3. We can set up an equation to find the value of x: - 2(4x + 5x) = 126 - Simplifying the equation, we get: - 18x = 126 - Dividing both sides by 18, we find: - x = 7 4. Now that we have the value of x, we can find the lengths of the sides: - The first side is 4x = 4 * 7 = 28 cm. - The second side is 5x = 5 * 7 = 35 cm.

Therefore, the sides of the parallelogram are 28 cm and 35 cm.