Question

У меня есть поле S=45a ширина=50м P-?

Answer 1

1 а = 100 м² (сотка)

S = a · b = 45 a = 4 500 (м²) - площадь поля

а = 50 (м) - ширина

b = 4 500 : 50 = 90 (м) - длина

P = (a + b) · 2 = (50 + 90) · 2 = 140 · 2 = 280 (м) - периметр поля

Ответ: 280 м.

Answer 2

I can answer your question in detail. You have a rectangular field with an area of S = 45a and a width of 50 m. You want to find the perimeter of the field. Here are the steps to solve this problem:

- First, you need to convert the area from are (a) to square meters (m^2). One are is equal to 100 m^2, so 45 a = 4500 m^2. - Next, you need to find the length of the field using the formula S = l * w, where S is the area, l is the length, and w is the width. Since you know S and w, you can solve for l by dividing both sides by w. So, l = S / w = 4500 m^2 / 50 m = 90 m. - Finally, you need to find the perimeter of the field using the formula P = 2 * (l + w), where P is the perimeter, l is the length, and w is the width. Since you know l and w, you can plug them into the formula and simplify. So, P = 2 * (90 m + 50 m) = 2 * 140 m = 280 m.

The answer is that the perimeter of the field is 280 m.

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