Question

Площадь прямоугольника-432см. Ширина его равна 8см. Найди периметр прямоугольника?

Answer 1

Найдем длину прямоугольника
432:8=54 см
найдем периметр
2*54+2*8=108+16=124 см

Answer 2

Calculation of the Perimeter of a Rectangle

To find the perimeter of a rectangle, we need to know the length and width of the rectangle. In this case, the width of the rectangle is given as 8 cm. However, the length of the rectangle is not provided.

To calculate the perimeter, we can use the formula:

Perimeter = 2 * (Length + Width)

Since the area of the rectangle is given as 432 cm², we can use this information to find the length of the rectangle.

Calculation of the Length of the Rectangle

The formula for the area of a rectangle is:

Area = Length * Width

Given that the area is 432 cm² and the width is 8 cm, we can rearrange the formula to solve for the length:

Length = Area / Width

Substituting the given values:

Length = 432 cm² / 8 cm

Calculating the length:

Length = 54 cm

Now that we have the length and width of the rectangle, we can calculate the perimeter.

Calculation of the Perimeter

Using the formula for the perimeter of a rectangle:

Perimeter = 2 * (Length + Width)

Substituting the values:

Perimeter = 2 * (54 cm + 8 cm)

Calculating the perimeter:

Perimeter = 2 * 62 cm

Perimeter = 124 cm

Therefore, the perimeter of the rectangle is 124 cm.