Question

Изображение прямоугольника клумбы в масштабе 1:9 имеет стороны 2 дм 7см и 18 см какова площадь клумбы в действительности ?(ответ округлить до целых)

Answer 1

2 дм 7 см=27 см
1) 27*9=243 см
2) 18*9=162 см
3) 243*162=39366 см² (3,9366 м²≈4 м²)

Answer 2

Calculation of the Actual Area of the Flowerbed

To calculate the actual area of the flowerbed, we need to determine the scale factor between the given dimensions and the actual dimensions. The scale factor is given as 1:9, which means that every unit on the drawing represents 9 units in reality.

Given that the length of the flowerbed on the drawing is 2 dm 7 cm (or 27 cm) and the width is 18 cm, we can calculate the actual length and width as follows:

Actual length = 27 cm * 9 = 243 cm Actual width = 18 cm * 9 = 162 cm

To find the actual area of the flowerbed, we multiply the actual length by the actual width:

Actual area = 243 cm * 162 cm = 39,366 cm²

Rounding the actual area to the nearest whole number, the actual area of the flowerbed is approximately 39,366 cm².