# How do you change the radius so that the circumference increases 8 times?

July 29, 2021 | education

| Let’s write down the formula for determining the circumference in terms of the radius:

l = 2πR,

where l is the circumference, R is the radius, π = 3.14.

Based on the formula for the circumference of a circle, the circumference of a circle is directly proportional to the radius of the circle.

The quantities are called directly proportional if, when one quantity is increased by several times, the second quantity is increased by the same quantity.

This means that in order for the circumference to increase by 6 times, it is necessary to increase the radius of the circle by 6 times.

Answer: the radius of the circle must be increased by 6 times.

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.