Question

Периметр прямоугольника 24 см а длина одной его стороны 4 см найди площадь прямоугольника

Answer 1

P=24 см
D=4 см
24-4=20
20:2=10
10*4=40
S=40

Answer 2

1)4 * 2=8 -2 сторони 
2)24-8=16- 2 другие сторони
3)16:2=8- 1 сторона другая
4)S= 8*4=32

Answer 3

Calculation of the Rectangle's Perimeter

To find the perimeter of a rectangle, you need to add up the lengths of all its sides. In this case, the perimeter of the rectangle is given as 24 cm, and the length of one of its sides is 4 cm.

Let's denote the length of one side as 'a' and the width as 'b'. The formula for the perimeter of a rectangle is:

P = 2(a + b)

Using the given information, we can substitute the values into the formula:

24 = 2(4 + b)

Simplifying the equation, we have:

24 = 8 + 2b

Subtracting 8 from both sides, we get:

16 = 2b

Dividing both sides by 2, we find:

b = 8

So, the width of the rectangle is 8 cm.

Now that we know the length (4 cm) and width (8 cm) of the rectangle, we can calculate its area.

Calculation of the Rectangle's Area

The formula for the area of a rectangle is:

A = length × width

Substituting the given values, we have:

A = 4 × 8

Calculating the product, we find:

A = 32 cm²

Therefore, the area of the rectangle is 32 square centimeters.

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