Question

Найдите длину окружности если её диаметр равен 25см. Число округдите до целых. Решите пожалуйста у меня в понедельник контрольная, а я не понимаю эту тему

Answer 1

25*25+25 равен диаметор
ответ умножить на 25

Answer 2

L=2pr тогда r=d/2 25/2=17,5 l=2*15,7*10=250

Answer 3

Finding the Circumference of a Circle

To find the circumference of a circle, you can use the formula:

Circumference = π * Diameter

Given that the diameter of the circle is 25 cm, we can substitute this value into the formula to find the circumference. Let's calculate it step by step:

1. First, we need to determine the value of π (pi). Pi is an irrational number that is approximately equal to 3.14159. For simplicity, we will use the value of π as 3.14.

2. Next, we substitute the diameter into the formula:

Circumference = 3.14 * 25 cm

Calculating this, we get:

Circumference = 78.5 cm

Therefore, the length of the circumference of the circle with a diameter of 25 cm is approximately 78.5 cm.

Please note that the value of π is an irrational number and cannot be expressed exactly as a fraction or a finite decimal. The approximation of 3.14 is commonly used for calculations involving circles.

I hope this helps! Let me know if you have any further questions.