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2021 AMC 12B Question 15

AMC12 · 2021 AMC 12B

Question 15

The figure is constructed from $11$ line segments, each of which has length $2.$ The area of pentagon $ABCDE$ can be written as $\sqrt m+\sqrt n,$ where $m$ and $n$ are positive integers. What is $m+n?$

Question illustration
  1. $20$
  2. $21$
  3. $22$
  4. $23$
  5. $24$