Question

365. Диаметр цветочной клумбы, имеющей форму круга, равен 12 м. Сколько луковиц цветов можно посадить на этой клумбе, если средняя плотность посадки составляет 35 луко виц на квадратный метр?

Answer 1

Ответ:

3956

Пошаговое объяснение:

По формуле площади круга S=(πD²)/4.

S≈(3,14·12²)/4≈3,14·36≈113,04 м² - площадь клумбы.

113,04·35=3956,04≈3956 луковиц цветов.

3956 луковиц цветов можно посадить на этой клумбе.

Answer 2

Calculation of the Number of Flower Bulbs

To calculate the number of flower bulbs that can be planted on a circular flower bed with a diameter of 12 meters, we need to determine the area of the flower bed and then divide it by the average planting density.

The formula to calculate the area of a circle is:

Area = π * (radius)^2

Since we are given the diameter of the flower bed, we can calculate the radius by dividing the diameter by 2:

Radius = Diameter / 2

Let's calculate the radius and the area of the flower bed:

Radius = 12 m / 2 = 6 m

Area = π * (6 m)^2

Now, let's calculate the number of flower bulbs that can be planted on this flower bed. We are given that the average planting density is 35 bulbs per square meter.

Number of Bulbs = Area * Planting Density

Number of Bulbs = (π * (6 m)^2) * 35 bulbs/m^2

To get the final answer, we need to calculate the value of π (pi). The value of pi is approximately 3.14159.

Number of Bulbs = (3.14159 * (6 m)^2) * 35 bulbs/m^2

Now, let's calculate the number of bulbs:

Number of Bulbs = (3.14159 * 36 m^2) * 35 bulbs/m^2

Number of Bulbs ≈ 3.14159 * 36 * 35 bulbs

Number of Bulbs ≈ 3958 bulbs

Therefore, approximately 3958 flower bulbs can be planted on the circular flower bed with a diameter of 12 meters, assuming an average planting density of 35 bulbs per square meter.

Please note that the above calculation assumes that the flower bulbs can be planted in a continuous pattern without any gaps or overlaps. The actual number of bulbs that can be planted may vary depending on the specific planting arrangement and spacing requirements.