Question

План комнаты имеет вид прямоунольника со сторонами 40мм и 31мм.Определите длину и ширину комнаты если численый масштаб плана 1:200000?

Answer 1

20000мм-2000см
40мм-4см
31мм-3,1см
1-2000
x-4
4=2000x
-2000x=-4:(-2000)
x=0,002(см)-длина
1-2000
x-3,1
3,1=2000x
-2000x=-3,1:(-2000)
x=0,00155

Answer 2

Calculation of the Length and Width of the Room

To determine the length and width of the room based on the given plan, we need to apply the numerical scale of 1:200000.

Let's start by converting the dimensions of the room on the plan to their actual values.

The length of the room on the plan is given as 40mm, and the width is given as 31mm.

To convert these measurements to their actual values, we need to divide them by the numerical scale of 200000.

The formula to calculate the actual length and width is as follows:

Actual Length = Length on Plan / Numerical Scale

Actual Width = Width on Plan / Numerical Scale

Let's calculate the actual length and width of the room using the given measurements and the numerical scale:

Actual Length = 40mm / 200000 = 0.0002 meters

Actual Width = 31mm / 200000 = 0.000155 meters

Therefore, the length of the room is approximately 0.0002 meters and the width is approximately 0.000155 meters.

Please note that the actual values are rounded for simplicity.