Question

When the radius of a circle is multiplied by a factor of 333, by what factor will the circumference of the circle change?

Answer 1

R(2)=333*r(1)
C(1)=2πr(1)
C(2)=2πr(2)=2π*333r(1)

C(2)/C(1)=2π*333r(1)/2πr(1)=333
circumference  will increase by factor 333