Question

输入您的问题两两外切的三个圆,圆心距分别为3,4,5,则这三个圆的半径分别是

Answer 1

1 r2 r3

r1+r2=3

r2+r3+4

r1+r3=5

2(r1+r2+r3)=12

r1+r2+r3=6

r3=3

r2=1

r1=2