Question

Садовый участок прямоугольной формы имеет длину 30 м. Ширина составляет 0,7 длины. Какова площадь участка? Сколько надо заплатить за изгородь вокруг него , если 1 м изгороди стоит 1500 рублей?

Answer 1

Calculation of the Area of the Garden Plot

To calculate the area of a rectangular garden plot, we need to multiply its length by its width. In this case, the length of the garden plot is given as 30 meters, and the width is 0.7 times the length.

Let's calculate the width of the garden plot first:

Width = 0.7 * Length Width = 0.7 * 30 Width = 21 meters

Now that we have the length and width, we can calculate the area of the garden plot:

Area = Length * Width Area = 30 * 21 Area = 630 square meters

Therefore, the area of the garden plot is 630 square meters.

Cost of the Hedge Surrounding the Garden Plot

To calculate the cost of the hedge surrounding the garden plot, we need to know the length of the hedge. Since the garden plot is rectangular, the length of the hedge will be equal to the perimeter of the garden plot.

The perimeter of a rectangle can be calculated by adding the lengths of all four sides. In this case, two sides have a length of 30 meters, and the other two sides have a length of 21 meters.

Perimeter = 2 * (Length + Width) Perimeter = 2 * (30 + 21) Perimeter = 2 * 51 Perimeter = 102 meters

Now that we have the length of the hedge, we can calculate the cost:

Cost = Length of Hedge * Cost per meter Cost = 102 * 1500 Cost = 153,000 rubles

Therefore, the cost of the hedge surrounding the garden plot is 153,000 rubles.

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