Question

Длинна одной стороны комнаты равна 62 дм. Другая сторона на 1м 20 см короче. Найди площадь комнаты в квадратных дм.Вырази ответ в квадратных метрах.

Answer 1

62дм=620см=6м 20см

1)6м 20см-1м 20 см=5м

2)6м 20см умножим на 5 м=30 м 20см следовательно

30м20см=30020см=3002 дм в квадрате.

Answer 2

Calculation of the Room Area

To find the area of the room, we need to multiply the lengths of its sides. Let's denote the length of one side as a and the length of the other side as b.

Given that one side of the room is 62 dm and the other side is 1 m 20 cm (which is 120 cm) shorter, we can express the lengths as follows:

a = 62 dm

b = a - 120 cm

To convert the lengths to the same unit, we need to convert 62 dm to cm. Since 1 dm is equal to 10 cm, we have:

a = 62 dm = 62 * 10 cm = 620 cm

Now we can substitute the value of a into the equation for b:

b = 620 cm - 120 cm = 500 cm

The area of the room can be calculated by multiplying the lengths of the sides:

Area = a * b

Area = 620 cm * 500 cm

To express the answer in square meters, we need to convert the area from square centimeters to square meters. Since 1 square meter is equal to 10,000 square centimeters, we have:

Area = (620 cm * 500 cm) / 10,000

Simplifying the calculation:

Area = 31,000 cm² / 10,000

Area = 3.1 m²

Therefore, the area of the room is 3.1 square meters.