Question

Нарисуй прямоугольник,длина 8 и периметр 22,какая площадь прямоугольника

Answer 1

Ответ:

24

Пошаговое объяснение:

(8+b)*2=22

(8+b)=11

b=3

S=ab=8*3=24

Answer 2

Calculating the Area of a Rectangle with Given Perimeter and Length

To calculate the area of a rectangle with a given length of 8 and a perimeter of 22, we can use the formula for the perimeter of a rectangle and the formula for the area of a rectangle.

Perimeter of a Rectangle: The perimeter of a rectangle is given by the formula: \[ 2 \times (length + width) = 22 \]

Area of a Rectangle: The area of a rectangle is given by the formula: \[ length \times width \]

Calculating the Width of the Rectangle

Let's first calculate the width of the rectangle using the given perimeter and length.

Using the formula for the perimeter of a rectangle, we can solve for the width: \[ 2 \times (8 + width) = 22 \]

Solving for the width: \[ 16 + 2 \times width = 22 \] \[ 2 \times width = 22 - 16 \] \[ 2 \times width = 6 \] \[ width = 3 \]

So, the width of the rectangle is 3.

Calculating the Area of the Rectangle

Now that we have the length and width of the rectangle, we can calculate the area using the formula: \[ length \times width = 8 \times 3 = 24 \]

Therefore, the area of the rectangle is 24 square units.

I hope this helps! If you have any further questions, feel free to ask.