Question

Помогите рещить задачю : найдите радиус окружности если ее длина равна 25,12 см (п-3,14) помогите только надо со всеми вычеслениями плиз

Answer 1

L=2*π*R
R=L/(2*π)

R=25.12/(2*3.14)=12.56/3.14=4 cм

Answer 2

Finding the Radius of a Circle

To find the radius of a circle when its circumference is given, you can use the formula:

C = 2πr

where C is the circumference and r is the radius of the circle.

In this case, the circumference of the circle is given as 25.12 cm. We can substitute this value into the formula and solve for the radius.

25.12 = 2πr

To solve for r, we need to isolate it on one side of the equation. We can do this by dividing both sides of the equation by 2π:

r = 25.12 / (2π)

Now, let's calculate the value of r using the approximation of π as 3.14:

r = 25.12 / (2 * 3.14)

r ≈ 25.12 / 6.28

r ≈ 4 cm

Therefore, the radius of the circle is approximately 4 cm.