Answer: The circumference of a circle with radius 3 is 3 times as big as the circumference of a circle with radius 1 Explanation: Assume that the radius of the small circle is r Increasing the radius by a factor of 3 means that the new radius of the large circle would be 3r
Circumference of circle can be calculated as follows: circumference = 2*π*radius
For the small circle: circumference = 2πr
For the large circle: circumference = 2π(3r) circumference = 6πr
Comparing the circumference of the two circles, we can deduce the increasing the radius by a factor of 3 will lead to the increase in the circumference of the circle by factor of 3 as well