Question

чему равна площадь поверхности пульта управления полётом самолёта, если она в 4 раза больше площади поверхности прямоугольного экрана с периметром 16 дм и шириной 2 дм

Answer 1

1) Р=(a+b)*2

a=P:2-b

а=16:2-2=6 (дм) - длина поверхности прямоугольного экрана

2) S=ab

6*2=12 (кв.дм) - площадь поверхности прямоугольного экрана

3) 12*4=48 (кв.дм)

Ответ: площадь поверхности пульта управления полётом самолёта равна 48 кв.дм.

Answer 2

Calculation of the Surface Area of the Flight Control Remote

To calculate the surface area of the flight control remote, we need to compare it to the surface area of a rectangular screen with a perimeter of 16 dm and a width of 2 dm.

Let's start by calculating the dimensions of the rectangular screen.

Given: - Perimeter of the rectangular screen = 16 dm - Width of the rectangular screen = 2 dm

To find the length of the rectangular screen, we can use the formula for the perimeter of a rectangle:

Perimeter = 2 * (Length + Width)

Substituting the given values:

16 dm = 2 * (Length + 2 dm)

Simplifying the equation:

8 dm = Length + 2 dm

Subtracting 2 dm from both sides:

6 dm = Length

So, the length of the rectangular screen is 6 dm.

Now that we have the dimensions of the rectangular screen, we can calculate its surface area.

Surface Area of a Rectangle = Length * Width

Substituting the values:

Surface Area of the Rectangle = 6 dm * 2 dm = 12 dm²

Now, we are given that the surface area of the flight control remote is 4 times larger than the surface area of the rectangular screen.

Surface Area of the Flight Control Remote = 4 * Surface Area of the Rectangle

Substituting the value:

Surface Area of the Flight Control Remote = 4 * 12 dm² = 48 dm²

Therefore, the surface area of the flight control remote is 48 dm².