Question

Длина окружности 3.5 дм.Чему равна длина второй окружности,у которой диаметр составляет пять седьмых диаметра первой окружности?

Answer 1

длина второй окружности равна 2.5 дм, т.к. диамерт составляет пять седьмыхдиаметра первой окружности и значит мы должны 3.5х5/7=2.5 дм

Answer 2

Calculation of the Length of the Second Circle

To find the length of the second circle, we need to determine the diameter of the second circle first. The diameter of the second circle is given as five sevenths (5/7) of the diameter of the first circle.

Let's calculate the diameter of the second circle using the given information:

Diameter of the second circle = (5/7) * Diameter of the first circle

Now, we know that the length of the first circle is 3.5 dm. To find the diameter of the first circle, we can use the formula:

Length of a circle = π * Diameter

Therefore, the diameter of the first circle can be calculated as:

Diameter of the first circle = Length of the first circle / π

Let's substitute the values and calculate the diameter of the first circle:

Diameter of the first circle = 3.5 dm / π

Now, we can calculate the diameter of the second circle:

Diameter of the second circle = (5/7) * (3.5 dm / π)

To find the length of the second circle, we can use the formula:

Length of a circle = π * Diameter

Therefore, the length of the second circle can be calculated as:

Length of the second circle = π * Diameter of the second circle

Let's substitute the values and calculate the length of the second circle.