Question

Вырежьте прямоугольник с длинами сторон 8 см и 4 см. Отрежьте от прямоугольника полоску шириной 1 см. Вычислите площадь оставшейся части. Сколько решений имеет задача? СРОЧНО!

Answer 1

Площадь первого прямоугольника = 8*4=32
площадь второго = 8*3=24 или 7*4=28, это смотря как отрезать

Answer 2

Problem Analysis

To solve this problem, we need to find the area of the remaining part after cutting a strip of width 1 cm from a rectangle with side lengths of 8 cm and 4 cm. We also need to determine the number of possible solutions for this problem.

Solution

To find the area of the remaining part, we first calculate the area of the original rectangle and then subtract the area of the cut strip.

The area of the original rectangle is given by the formula: Area = length * width.

Given that the length of the rectangle is 8 cm and the width is 4 cm, we can calculate the area as follows:

Area of the original rectangle = 8 cm * 4 cm = 32 cm².

Next, we need to calculate the area of the cut strip. The strip has a width of 1 cm and the same length as the original rectangle. Therefore, the area of the strip is:

Area of the strip = length * width = 8 cm * 1 cm = 8 cm².

To find the area of the remaining part, we subtract the area of the strip from the area of the original rectangle:

Area of the remaining part = Area of the original rectangle - Area of the strip = 32 cm² - 8 cm² = 24 cm².

Therefore, the area of the remaining part is 24 cm².

Number of Solutions

The problem described does not involve any variables or unknowns. It is a straightforward calculation based on given dimensions. As such, there is only one solution to this problem.

Conclusion

The area of the remaining part after cutting a strip of width 1 cm from a rectangle with side lengths of 8 cm and 4 cm is 24 cm². There is only one solution to this problem.