Question

Комната имеет форму куба со стороной 3 метра. Каков объем комнаты ? найди площадь стен этой комнаты.Сколько краски потребуется для окраски стен ,если на 1 метр в квадрате уходит 200 граммов краски?

Answer 1

a = 3;

V = a^3 = 3^3 = 27 (м Куб)

S = S1 * 4;

S1 = a^2 = 9 => S = 9 * 4 = 36 (м Кв)

N = S  * 0.2 = 7.2 (Л)

Ответ: V = 27; S = 36; N = 7.2

Answer 2

Calculating the Volume of the Room:

The volume of a cube can be calculated using the formula: volume = side^3. Given that the side of the cube-shaped room is 3 meters, we can calculate the volume using this formula.

The volume of the room is 27 cubic meters.

Finding the Area of the Walls:

The total surface area of the walls in a cube-shaped room can be calculated using the formula: surface area = 6 * side^2.

The area of the walls in this room is 54 square meters.

Calculating the Amount of Paint Needed:

If 1 square meter of wall requires 200 grams of paint, we can calculate the total amount of paint needed using the formula: amount of paint = area of walls * paint per square meter.

The amount of paint needed to paint the walls of this room is 10.8 kilograms.