Question

В окнах вагонов метро верхние углы окна и рамы закруглены по дуге окружности. Окно приоткрыли, сдвинув стекло на 10 см. Высота подвижной части окна равна 25 см. Найдите площадь открытой части окна.

Answer 1

Если я правильно понял, то 25 см получается у нас длина окна, а 10 см ширина той части, которую сдвинуть. Соответственно 10*25=250 см^2, площадь открытой части.

Answer 2

Calculation of the Open Area of the Window

To find the area of the open part of the window, we need to calculate the area of the rectangular portion that is open.

Given: - The height of the movable part of the window is 25 cm. - The window is opened by sliding the glass by 10 cm.

To calculate the area of the open part of the window, we need to find the width of the rectangular portion that is open. Since the window is opened by sliding the glass, the width of the open part will be the same as the width of the movable part of the window.

Let's assume the width of the movable part of the window is w cm.

The area of the open part of the window can be calculated using the formula:

Area = width × height

Substituting the given values:

Area = w × 25 cm

Since the window is opened by sliding the glass by 10 cm, the width of the open part will be reduced by 10 cm. Therefore, the width of the open part of the window will be w - 10 cm.

Substituting this value into the formula:

Area = (w - 10) × 25 cm

Now we need to find the value of w to calculate the area of the open part of the window. Unfortunately, the provided information does not include the value of w or any other relevant measurements. Therefore, without additional information, it is not possible to calculate the exact area of the open part of the window.

If you have any additional information or measurements, please provide them so that we can assist you further.