Question

Сколько потребуется кафельных плиток квадратной формы со стороной 20 см,чтобы облицивать ими стену ,имеющую форму прямоугольника со сторонами 3,4м и 4,6м?

Answer 1

3,4*4,6=15,64
0,2*0,2=0,04
15,64/0,04=391
Ответ:391

Answer 2

Calculation of the Number of Tiles Required

To calculate the number of square tiles needed to cover a rectangular wall, we need to determine the area of the wall and the area of each tile.

The area of the wall can be calculated by multiplying the length and width of the wall. In this case, the wall has dimensions of 3.4 meters by 4.6 meters, so the area of the wall is:

Area of the wall = length × width = 3.4 m × 4.6 m = 15.64 square meters

The area of each tile is equal to the square of its side length. In this case, the tiles are square with a side length of 20 cm, which is equal to 0.2 meters. Therefore, the area of each tile is:

Area of each tile = side length × side length = 0.2 m × 0.2 m = 0.04 square meters

To find the number of tiles needed, we divide the area of the wall by the area of each tile:

Number of tiles = Area of the wall ÷ Area of each tile = 15.64 square meters ÷ 0.04 square meters = 391 tiles

Therefore, it will require 391 square tiles with a side length of 20 cm to cover the rectangular wall with dimensions 3.4 meters by 4.6 meters.