Question

в парке прямоугольной формы длинной 160 м и шириной 80 м на расстоянии 2 м от ограды сделана аллея. найдите ее длину

Answer 1

На рисунке зеленое это аллея, она 2 м от ограды
Длина парка= 160м
Ширина =80м
Длина аллеи=?м на 2м от ограды
Ширина аллеи=? На 2м от ограды

Ищем стороны аллеи, вычитаем по 2м с двух сторон;

1))160-2-2=156м длина (а)

2)) 80-2-2=76м Ширина (в)

Периметр прямоугольника

Р=2•(а+в) =2•(156+76)= 2•232=464м это вся длина аллеи.

Ответ: длина аллеи 464метра

Answer 2

Calculation of the Length of the Alley in a Rectangular Park

To find the length of the alley in a rectangular park, we need to consider the dimensions of the park and the distance of the alley from the fence.

Given: - The park is rectangular in shape. - The length of the park is 160 meters. - The width of the park is 80 meters. - The alley is located at a distance of 2 meters from the fence.

To calculate the length of the alley, we need to determine the length of the side of the park that is perpendicular to the alley. This will be the width of the park minus twice the distance of the alley from the fence.

Let's calculate it step by step:

1. Calculate the length of the side of the park perpendicular to the alley: - Width of the park: 80 meters - Distance of the alley from the fence: 2 meters - Length of the side of the park perpendicular to the alley: 80 - (2 * 2) = 76 meters

2. The length of the alley is equal to the length of the side of the park perpendicular to the alley: - Length of the alley: 76 meters

Therefore, the length of the alley in the rectangular park is 76 meters.

Please let me know if there's anything else I can help you with!