Find the Following Exactly Using the Figure Given If $a=4$ And $b=5$

Essay

Find the following exactly using the figure given if $a=4$ and $b=5$ . Express your answers as unsimplified radicals when appropriate.

A) $\sin A^{\circ}$
B) $\cos A^{\circ}$
C) $\tan A^{\circ}$
D) $\sin B^{\circ}$
E) $\cos B^{\circ}$
F) $\tan B^{\circ}$