Question

Длина комнаты-8 м,ширина-5 м,высота-3 м. Узнай площадь пола данной комнаты. Вычисли площадь х поверхности стен комнаты ты.Учти,что в комнате имеются окно (длиной 2 м и шириной 2 м ) и дверь (длиной 2 м и шириной 1 м)

Answer 1

Ответ:

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Answer 2

Calculating the Floor Area of the Room

To calculate the floor area of the room, we can use the formula: \[ \text{Area} = \text{length} \times \text{width} \]

Given: - Length of the room = 8 m - Width of the room = 5 m

Using the formula: \[ \text{Area} = 8 \times 5 = 40 \, \text{square meters} \]

The floor area of the room is 40 square meters.

Calculating the Total Surface Area of the Walls

To calculate the total surface area of the walls, we can use the formula for the surface area of a rectangular box: \[ \text{Surface Area} = 2 \times (\text{length} \times \text{height} + \text{width} \times \text{height}) \]

Given: - Length of the room = 8 m - Width of the room = 5 m - Height of the room = 3 m

Using the formula: \[ \text{Surface Area} = 2 \times (8 \times 3 + 5 \times 3) = 2 \times (24 + 15) = 2 \times 39 = 78 \, \text{square meters} \]

The total surface area of the walls in the room is 78 square meters.

Accounting for the Window and Door

To calculate the net wall surface area accounting for the window and door, we need to subtract their respective areas from the total surface area of the walls.

Given: - Window length = 2 m - Window width = 2 m - Door length = 2 m - Door width = 1 m

The area of the window is: \[ \text{Window Area} = \text{length} \times \text{width} = 2 \times 2 = 4 \, \text{square meters} \]

The area of the door is: \[ \text{Door Area} = \text{length} \times \text{width} = 2 \times 1 = 2 \, \text{square meters} \]

Subtracting the window and door areas from the total surface area of the walls: \[ \text{Net Wall Surface Area} = 78 - (4 + 2) = 72 \, \text{square meters} \]

The net wall surface area, accounting for the window and door, is 72 square meters.