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2015 AMC 12A Question 2

AMC12 · 2015 AMC 12A

Question 2

Two of the three sides of a triangle are $20$ and $15.$ Which of the following numbers is not a possible perimeter of the triangle?
  1. $52$
  2. $57$
  3. $62$
  4. $67$
  5. $72$