2020 AMC 12A Question 14
AMC12 · 2020 AMC 12A
Regular octagon $ABCDEFGH$ has area $n.$ Let $m$ be the area of quadrilateral $ACEG.$ What is $\dfrac{m}{n}?$
$\dfrac{\sqrt{2}}{4}$
$\dfrac{\sqrt{2}}{2}$
$\dfrac{3}{4}$
$\dfrac{3\sqrt{2}}{5}$
$\dfrac{2\sqrt{2}}{3}$