Question 12A dart board is a regular octagon divided into regions as shown. Suppose that a dart thrown at the board is equally likely to land anywhere on the board. What is the probability that the dart lands within the center square? $\dfrac{\sqrt{2}-1}{2}$$\dfrac{1}{4}$$\dfrac{2-\sqrt{2}}{2}$$\dfrac{\sqrt{2}}{4}$$2-\sqrt{2}$
