Question 14Equilateral $\triangle ABC$ has side length $2,$ $M$ is the midpoint of $\overline{AC},$ and $C$ is the midpoint of $\overline{BD}.$ What is the area of $\triangle CDM?$ $\dfrac{\sqrt{2}}{2}$$\dfrac{3}{4}$$\dfrac{\sqrt{3}}{2}$$1$$\sqrt{2}$