Answer
$A=49\frac{1}{2}$ sq in.
Work Step by Step
$A=\frac{1}{2}bh$,
$A=\frac{1}{2}\times8\frac{1}{4}\times12$
$A=\frac{1}{2}\times\frac{33}{4}\times\frac{12}{1}$
$A=\frac{33}{8}\times\frac{12}{1}$
$A=\frac{33}{2}\times\frac{3}{1}$
$A=\frac{99}{2}$
$A=49\frac{1}{2}$ sq in.