Question

Участок земли имеет форму прямоугольника,ширина которого 16 метров,а длина на 5 дм больше.он обнесён проволкой в 5 рядов.сколько проволки потребовалось?

Answer 1

B (ширина) - 18 м (180 дм)
A (длина) - ? на 7 дм больше, чем В (ширина) 1)180+7=187 (дм) - длина2)(180+187)*2=734 (дм) - периметр3)734*5=3670 (дм) - потребовалось проволоки 3670 дм = 367 м ОТВЕТ: потребовалось 367 м пров

Answer 2

5дм=0.5м
16м-ширина
0.5м-длина
S-площадь
S=0.5м*16м=8м^2
8м^2*5=40м^2

Answer 3

Calculation of the Length of the Rectangle

To determine the length of the rectangle, we need to know the width and that the length is 5 decimeters (dm) longer than the width. Given that the width is 16 meters, we can convert the length to meters and calculate it.

The length in meters is equal to the width in meters plus 5 decimeters converted to meters. Since 1 decimeter is equal to 0.1 meters, we can calculate the length as follows:

Length (m) = Width (m) + (5 dm * 0.1 m/dm)

Substituting the given values:

Length (m) = 16 m + (5 dm * 0.1 m/dm)

Calculating the length:

Length (m) = 16 m + 0.5 m

Length (m) = 16.5 m

Therefore, the length of the rectangle is 16.5 meters.

Calculation of the Perimeter of the Rectangle

To calculate the perimeter of the rectangle, we need to know the length and width. The perimeter of a rectangle is given by the formula:

Perimeter = 2 * (Length + Width)

Substituting the given values:

Perimeter = 2 * (16.5 m + 16 m)

Calculating the perimeter:

Perimeter = 2 * 32.5 m

Perimeter = 65 m

Therefore, the perimeter of the rectangle is 65 meters.

Calculation of the Amount of Wire Required

To determine the amount of wire required to enclose the rectangle with 5 rows, we need to calculate the total length of wire needed for each row and then multiply it by the number of rows.

The total length of wire required for each row is equal to the perimeter of the rectangle. From the previous calculation, we know that the perimeter is 65 meters.

To calculate the total length of wire required for all 5 rows, we multiply the perimeter by the number of rows:

Total Length of Wire = Perimeter * Number of Rows

Substituting the given values:

Total Length of Wire = 65 m * 5

Calculating the total length of wire:

Total Length of Wire = 325 m

Therefore, the amount of wire required to enclose the rectangle in 5 rows is 325 meters.

Summary: - The length of the rectangle is 16.5 meters. - The perimeter of the rectangle is 65 meters. - The amount of wire required to enclose the rectangle in 5 rows is 325 meters.