Find the circumference of a circle if its radius is 3.25 dm.
| September 11, 2021 | education
In the problem statement, the radius of the circle is set and it is equal to R = 3.25 dm.
To find the circumference of a circle, you need to know the value of the constant – the number n = 3.14 (the number n is rounded to the nearest hundredth).
To find the circumference of a circle, we will use the following formula.
l = 2пR, where R is the radius of the circle, and we remembered the value of the number n above.
Substitute the known values into the formula and calculate the circumference:
l = 2 * 3.14 * 3.25 = 6.5 * 3.14 = 20.41 dm.
The circumference with a radius of R = 3.25 dm is equal to 20.41 dm.
Answer: the circumference is 20.41 dm.
One of the components of a person's success in our time is receiving modern high-quality education, mastering the knowledge, skills and abilities necessary for life in society. A person today needs to study almost all his life, mastering everything new and new, acquiring the necessary professional qualities.
