Question

Пол ком­на­ты, име­ю­щей форму пря­мо­уголь­ни­ка со сто­ро­на­ми 5 м и 8 м, тре­бу­ет­ся по­крыть пар­ке­том из пря­мо­уголь­ных до­ще­чек со сто­ро­на­ми 5 см и 40 см. Сколь­ко по­тре­бу­ет­ся таких до­ще­чек?

Answer 1

1) 5 х 8 = 40 (м.кв) - S пола
2) 5 х 40 = 200 ( см.кв) - S дощечки
3) 40 м.кв=400000 см.кв
4) 400000 : 200= 2000 ( шт.) - понадобится
Ответ : 2000 штук дощечек

Answer 2

Calculation of the Number of Wooden Planks Needed to Cover the Room

To calculate the number of wooden planks needed to cover the rectangular room, we need to determine the area of the room and the area of each wooden plank.

The area of the room can be calculated by multiplying the length and width of the room. In this case, the length of the room is 8 meters and the width is 5 meters. Therefore, the area of the room is:

Area of the room = length × width = 8 m × 5 m = 40 square meters.

The area of each wooden plank can be calculated by multiplying the length and width of the plank. In this case, the length of the plank is 40 centimeters (0.4 meters) and the width is 5 centimeters (0.05 meters). Therefore, the area of each wooden plank is:

Area of each wooden plank = length × width = 0.4 m × 0.05 m = 0.02 square meters.

To find the number of wooden planks needed, we divide the area of the room by the area of each wooden plank:

Number of wooden planks = Area of the room / Area of each wooden plank = 40 square meters / 0.02 square meters = 2000 planks.

Therefore, 2000 wooden planks will be needed to cover the room.