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352 : 132
352:22/7:2 : 132:22/7:2
352x7/22:2 : 132x7/22:2
56 : 21
8 : 3
d=7/22 * 352
d=16cm*7=112
r=56cm
----------------------
22/7*d=132
d=7/22*132
d=7*6
d=42cm
r=21cm
--------------------
Rb : Rk=56 : 21
=56/7 : 21/7
=8:3