Question

Периметр участка прямоугольной формы 90 м. Его ширина 20м.Чему равна его площадь?

Answer 1

Периметр - это сумма всех сторон. Сначала узнаем длину участка, для этого из периметра вычтем две ширины и разделим это на 2. (90-20*2)/2=25.

Площадь - это произведение длины и ширины. 20*25=500.

Ответ: площать прямоугольного участка 500 кв.м. 

Answer 2

Calculation of Perimeter and Area

To calculate the perimeter and area of a rectangular plot, we need to know the width and length of the plot. In this case, the width of the plot is given as 20 meters.

The perimeter of a rectangle is calculated by adding the lengths of all four sides. The formula for calculating the perimeter of a rectangle is:

Perimeter = 2 * (Length + Width)

Given that the perimeter of the plot is 90 meters and the width is 20 meters, we can use the formula to find the length of the plot:

90 = 2 * (Length + 20)

To solve for the length, we can rearrange the equation:

Length + 20 = 45

Length = 45 - 20 = 25

Therefore, the length of the plot is 25 meters.

Now that we have the width and length of the plot, we can calculate the area. The formula for calculating the area of a rectangle is:

Area = Length * Width

Substituting the values we have:

Area = 25 * 20 = 500 square meters

Therefore, the area of the rectangular plot is 500 square meters.

Conclusion

The perimeter of the rectangular plot is 90 meters, and its area is 500 square meters.