Question #f7364

1 Answer
May 8, 2017

ratio of radius# =1 :10#

Explanation:

let say r = radius for small circle while R = for big circle.

Area ratio = area of small circle/area of big circle.
#(pi r^2)/(pi R^2) = (2 pi)/(200pi)#

#(r^2)/(R^2) = 1/(100)#

#r/R =sqrt(1/100)#

#r/R =1/10#

#r:R = 1:10#