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2020 AMC 12B Question 10

AMC12 · 2020 AMC 12B

Question 10

In unit square $ABCD,$ the inscribed circle $\omega$ intersects $\overline{CD}$ at $M,$ and $\overline{AM}$ intersects $\omega$ at a point $P$ different from $M.$ What is $AP?$
  1. $\dfrac{\sqrt{5}}{12}$
  2. $\dfrac{\sqrt{5}}{10}$
  3. $\dfrac{\sqrt{5}}{9}$
  4. $\dfrac{\sqrt{5}}{8}$
  5. $\dfrac{2\sqrt{5}}{15}$