Answers

2014-08-25T21:13:31+08:00

This Is a Certified Answer

×
Certified answers contain reliable, trustworthy information vouched for by a hand-picked team of experts. Brainly has millions of high quality answers, all of them carefully moderated by our most trusted community members, but certified answers are the finest of the finest.
Let the diameter of each circle be a,b and c

1/2 a + 1/2 b= 23  can be a+b=46.....E1
1/2 a + 1/2 c= 25  can be a+c=50......E2
1/2 b + 1/2 c=20  can be b+c=40......E3 (Let E mean equation cause its confusing)

E1+E2-E3=2a
96-40=2a
56=2a
28=a

From this we can get b=18 and c=22

So their radii are 14,9 and 11


0