Question

В санатории построили бассейн прямоугольной формы, длина которого 15м, ширина 5м и глубина 2м.1) Сколько квадратных кафельных плиток со стороной 1дм каждая потребовалась для облицовки дна этого бассейна? стенок этого бассейна?2) Сколько надо сделать шагов, чтобы обойти весь бассейн, если длина шага 50см?

Answer 1

1) 
1. 15*5=75м²=7500дм²   - 7500 столько плиток на дно
2.15*2*2+5*2*2=80м²=8000дм²-площадь стен бассейна- 8000 плиток на стены

2)
1.  (15+5)*2=40 м =4000 см- периметр бассейна
2.  4000:50=80 шагов надо сделать

Answer 2

Calculation of Tiles for the Pool Bottom and Walls

To calculate the number of tiles required to cover the bottom and walls of the rectangular pool, we need to find the total surface area of both.

1) Calculation of Tiles for the Pool Bottom: - The length of the pool is 15m, and the width is 5m. - The area of the pool bottom can be calculated by multiplying the length and width: 15m * 5m = 75 square meters. - To convert this area into square decimeters, we multiply by 10,000 (since 1 square meter is equal to 10,000 square decimeters): 75 square meters * 10,000 = 750,000 square decimeters. - Each tile has a side length of 1dm, which is equal to 0.1m. - To find the number of tiles required, we divide the total area of the pool bottom by the area of each tile: 750,000 square decimeters / (0.1m * 0.1m) = 75,000,000 tiles.

2) Calculation of Tiles for the Pool Walls: - The pool has four walls, each with a length of 15m and a height of 2m. - The total area of the pool walls can be calculated by multiplying the perimeter of the pool (2 * length + 2 * width) by the height: (2 * 15m + 2 * 5m) * 2m = 40 square meters. - Converting this area into square decimeters, we get: 40 square meters * 10,000 = 400,000 square decimeters. - Dividing the total area of the pool walls by the area of each tile, we find the number of tiles required: 400,000 square decimeters / (0.1m * 0.1m) = 40,000,000 tiles.

Therefore, for the rectangular pool with a length of 15m, width of 5m, and depth of 2m: 1) 75,000,000 tiles are required to cover the pool bottom. 2) 40,000,000 tiles are required to cover the pool walls.

Please note that these calculations assume that each tile perfectly fits the available space without any wastage or adjustments.

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