When the sun shines at a 75 angle to the ground, Nadia’s shadow is 18 inches long. To the nearest inch, how tall is Nadia?

\(x=\tan \left(75^{\circ \:}\right)\cdot \:18\)

 

\(\tan \left(75^{\circ \:}\right)=2+\sqrt{3} \)

 

\(x=18\left(2+\sqrt{3}\right)\) or \(x=67.18\)

 

-Vinculum