Question

. Реши задачу. Прямоугольник имеет площадь, равную 18 смНайди его длину и ширину.Реши задачу разными способами... помогите пожалуйста ✌​

Answer 1

Ответ:

здесь можно нарисовать 2 прямоугольника

1) со сторонами 6 и 3 см, то есть 6 см длина и 3 см ширина

2) со сторонами 9 и 2 см, то есть 9 см длина и 2 см ширина

Пошаговое объяснение:

Answer 2

Problem:

We are given that a rectangle has an area of 18 cm². We need to find its length and width. Let's solve this problem using different methods.

Method 1: Using Factors of the Area

To find the length and width of the rectangle, we can start by finding the factors of the given area, which is 18 cm². The factors of 18 are 1, 2, 3, 6, 9, and 18. We can pair these factors to find possible combinations of length and width.

Let's consider each pair of factors and check if their product equals 18: - Pair 1: Length = 1 cm, Width = 18 cm (1 * 18 = 18) - Pair 2: Length = 2 cm, Width = 9 cm (2 * 9 = 18) - Pair 3: Length = 3 cm, Width = 6 cm (3 * 6 = 18)

So, the possible dimensions of the rectangle are: - Length = 1 cm, Width = 18 cm - Length = 2 cm, Width = 9 cm - Length = 3 cm, Width = 6 cm

Method 2: Using Square Roots

Another way to find the length and width of the rectangle is by using the square root of the area. The area of a rectangle is given by the formula: Area = Length * Width. Since we know the area is 18 cm², we can find the square root of 18 to get an approximate value for the length and width.

Using a calculator, we find that the square root of 18 is approximately 4.2426. Since the length and width are equal for a square, we can assume that the length and width of the rectangle are both approximately 4.2426 cm.

Method 3: Using Algebra

We can also solve this problem using algebra. Let's assume the length of the rectangle is L cm and the width is W cm. We know that the area of the rectangle is 18 cm², so we can write the equation:

L * W = 18

To find the length and width, we need to solve this equation. Since we don't have any other information, we can't determine the exact values of L and W. However, we can find possible values by substituting different pairs of numbers that multiply to give 18.

Let's try a few pairs: - Pair 1: L = 1 cm, W = 18 cm (1 * 18 = 18) - Pair 2: L = 2 cm, W = 9 cm (2 * 9 = 18) - Pair 3: L = 3 cm, W = 6 cm (3 * 6 = 18)

So, the possible dimensions of the rectangle are: - Length = 1 cm, Width = 18 cm - Length = 2 cm, Width = 9 cm - Length = 3 cm, Width = 6 cm

Conclusion:

The rectangle can have different dimensions depending on the method used to solve the problem. The possible dimensions are: - Length = 1 cm, Width = 18 cm - Length = 2 cm, Width = 9 cm - Length = 3 cm, Width = 6 cm

Please note that without additional information, we cannot determine the exact length and width of the rectangle.