Textbook Problem

In Exercises 1 and 2, use the given information to find an expression for the area of $\Delta ABC$. Give the answer in a form such as $A=\frac{1}{2}\left(3\right)\left(4\right){\text{ sin 32}}^{\circ }$. See the figure for Exercises 1- 8.

a) $b=7.3,c=8.6,\text{ and }\alpha ={38}^{\circ }$

b) $a=5.3,c=8.4,\alpha ={36}^{\circ }\text{ and }\gamma ={87}^{\circ }$

Exercises 1-8