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SMO 2023 Senior Round 1 Question 4

SMO · SMO 2023 Senior Round 1

Question 4

If $(x-5)^2+(y-5)^2=5^2$, find the smallest value of $(x+5)^2+(y+5)^2$.
  1. $225-100\sqrt2$
  2. $225+100\sqrt2$
  3. $225\sqrt2$
  4. $100\sqrt2$
  5. None of the above.