Question

Садовый участок.обнесенный забором.имеет форму прямоугольника.длина участка 12 м.это в два раза больше ширины.найдите площадь периметр участка.3 класс помогите срочно

Answer 1

A=12 b=12:2 b=6 s=12•6=72

Answer 2

Длина 12 м, ширина 12/2 = 6 м.
Периметр 12+12+6+6 = 36 м.
Площадь 12х6 = 72 м.

Answer 3

Problem Analysis

We are given a garden plot that is enclosed by a fence and has the shape of a rectangle. The length of the plot is 12 meters, which is twice the width. We need to find the area and perimeter of the plot.

Solution

Let's start by finding the width of the garden plot. We are given that the length is twice the width, so we can set up the equation:

Length = 2 * Width

Substituting the given length value of 12 meters, we can solve for the width:

12 = 2 * Width

Dividing both sides of the equation by 2, we get:

Width = 6 meters

Now that we have the width, we can calculate the area and perimeter of the garden plot.

Calculating the Area

The area of a rectangle is given by the formula:

Area = Length * Width

Substituting the values, we have:

Area = 12 meters * 6 meters

Calculating the product, we get:

Area = 72 square meters

Therefore, the area of the garden plot is 72 square meters.

Calculating the Perimeter

The perimeter of a rectangle is given by the formula:

Perimeter = 2 * (Length + Width)

Substituting the values, we have:

Perimeter = 2 * (12 meters + 6 meters)

Calculating the sum inside the parentheses, we get:

Perimeter = 2 * 18 meters

Calculating the product, we get:

Perimeter = 36 meters

Therefore, the perimeter of the garden plot is 36 meters.

Conclusion

In conclusion, the garden plot, which is enclosed by a fence and has the shape of a rectangle, has an area of 72 square meters and a perimeter of 36 meters.

Let me know if there is anything else I can help you with!