Question

Площадь прямоугольника 40 кв см, длина одной стороны 8 см, найти периметр прямоугольника.

Answer 1

40/8=5(длина второй стороны) P=2(8+5)=26

Answer 2

Calculating the Perimeter of a Rectangle

To find the perimeter of a rectangle, we can use the formula: Perimeter = 2 * (Length + Width).

Given: - Area of the rectangle = 40 sq cm - Length of one side = 8 cm

Calculating the Width of the Rectangle

To find the width of the rectangle, we can use the formula: Area = Length * Width.

Using the given area and length: - Area = Length * Width - 40 = 8 * Width - Width = 40 / 8 - Width = 5 cm

Calculating the Perimeter

Now that we have the length and width, we can calculate the perimeter using the formula: - Perimeter = 2 * (Length + Width) - Perimeter = 2 * (8 + 5) - Perimeter = 2 * 13 - Perimeter = 26 cm So, the perimeter of the rectangle is 26 cm.