Question

Ширина прямоугольника 2см,а длина в 4 раза больше. найди площадь и-периметр этого прямоу

Answer 1

1) 2* 4 = 8 ( СМ ) - ДЛИНА
P =( A + B ) * 2
(2+8)*2 = 20 ( CM )
S = A * B
2*8= 16 (CM)

Answer 2

Периметр = 20 потому что ширина 2 см ,а длина = 2см * 4=8см
Площадь = 16см в квадрате  потому что Площадь = 2см * 8см = 16см

Answer 3

Calculating the Area and Perimeter of a Rectangle

To find the area and perimeter of a rectangle with a width of 2 cm and a length 4 times greater, we can use the following formulas:

Perimeter (P) = 2 * (length + width)

Area (S) = length * width

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

Calculating the Perimeter

The perimeter of a rectangle is given by the formula: P = 2 * (a + b), where a and b are the length and width of the rectangle.

Using the given dimensions: - Width (a) = 2 cm - Length (b) = 4 * 2 = 8 cm

We can calculate the perimeter: P = 2 * (2 + 8) P = 2 * 10 P = 20 cm

Calculating the Area

The area of a rectangle is given by the formula: S = a * b, where a and b are the length and width of the rectangle.

Using the given dimensions: - Width (a) = 2 cm - Length (b) = 8 cm

We can calculate the area: S = 2 * 8 S = 16 cm^2

So, the perimeter of the rectangle is 20 cm and the area is 16 cm^2.