Question

Участок земли имеет форму прямоугольника , ширина которого 12м , а длина на 4дм больше . он обнесен проволкой в 4 ряда сколько проволки потребовалось

Answer 1

195м 20см 12м=1200см -первая сторона 4дм=40см 1200+40=1240см-вторая сторона P=(1240+1200)*2=4800см Проволокой обмотанно 4раза, значит 4800*4=19520см=195м20см

Answer 2

Calculation of the Required Wire for Fencing a Rectangular Plot

To calculate the amount of wire required to fence a rectangular plot, we need to determine the perimeter of the plot. The perimeter is the sum of all the sides of the rectangle.

Given: - Width of the plot = 12 meters - Length of the plot = 4 decimeters (dm) more than the width

To find the length of the plot, we need to convert the length from decimeters to meters. Since 1 decimeter is equal to 0.1 meters, the length of the plot is 12 + 0.4 = 12.4 meters.

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

Substituting the values, we get: P = 2 * (12.4 + 12) = 2 * 24.4 = 48.8 meters.

Therefore, the perimeter of the rectangular plot is 48.8 meters.

Now, let's calculate the amount of wire required to fence the plot. Since the wire is placed in 4 rows, we need to multiply the perimeter by 4.

Wire required = 48.8 meters * 4 = 195.2 meters.

Therefore, 195.2 meters of wire will be required to fence the rectangular plot.