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1985 AMC 12 Question 28

AMC12 · 1985 AMC 12

Question 28

In $\triangle ABC,$ we have $\angle C=3\angle A,$ $a=27$ and $c=48.$ What is $b?$

Question illustration
  1. $33$
  2. $35$
  3. $37$
  4. $39$
  5. not uniquely determined