#### Answer

$6.75+0.84375(\frac{\sqrt3-\cos\theta}{\sin\theta})$

#### Work Step by Step

Using the formula and plugging in $s=0.75, h=1.5$ we get:
$S=6(1.5)(0.75)+1.5(0.75)^2(\frac{\sqrt3-\cos\theta}{\sin\theta})=6.75+0.84375(\frac{\sqrt3-\cos\theta}{\sin\theta})$