Question

Ширина прямоугольника 4см ,а его длина в 2раза больше.Найди площадь и периметр прямоугольника

Answer 1

4 * 2 =8 см 
S= 4*8
S=32cм  в квадрате 
P=(4+8/ * 2
P=24 cм

Answer 2

Calculating the Area and Perimeter of a Rectangle

To find the area and perimeter of a rectangle with a width of 4 cm and a length twice the width, we can use the following formulas:

Area of a Rectangle (S): The area of a rectangle is given by the formula: S = length * width.

Perimeter of a Rectangle (P): The perimeter of a rectangle is given by the formula: P = 2 * (length + width).

Let's calculate the area and perimeter using the given dimensions.

Calculating the Area

The width of the rectangle is 4 cm, and its length is 2 times the width.

Using the formula for the area of a rectangle: S = length * width. - The length = 2 * width = 2 * 4 = 8 cm. - Therefore, the area of the rectangle is: S = 8 * 4 = 32 cm^2.

Calculating the Perimeter

Using the formula for the perimeter of a rectangle: P = 2 * (length + width). - The length = 8 cm and the width = 4 cm. - Therefore, the perimeter of the rectangle is: P = 2 * (8 + 4) = 2 * 12 = 24 cm.

So, the area of the rectangle is 32 cm^2 and the perimeter is 24 cm.