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2008 AMC 8 Question 18

AMC8 · 2008 AMC 8

Question 18

Two circles that share the same center have radii $10$ meters and $20$ meters. An aardvark runs along the path shown, starting at $A$ and ending at $K.$ How many meters does the aardvark run?

Question illustration
  1. $ \ 10\pi+20 $
  2. $ \ 10\pi+30 $
  3. $ \ 10\pi+40 $
  4. $ \ 20\pi+20 $
  5. $ \ 20\pi+40 $