$\displaystyle \frac{3\sqrt{3}}{4}$\displaystyle \frac{3\sqrt{3}}{4}

$\displaystyle \frac{9\sqrt{3}}{4}$\displaystyle \frac{9\sqrt{3}}{4}

$3\sqrt{3}$3\sqrt{3}

$6\sqrt{3}$6\sqrt{3}