Answer
Area of the Triangle = $A$ = 28.125 ft$^{2}$
Perimeter of the Triangle = $P$ = 37 ft
Work Step by Step
Area of a Triangle: $A$ = $\frac{1}{2}$$b$$h$
Therefore:
$A$ =$\frac{1}{2}$(9 ft)(6.25 ft)
$A$ = 28.125 ft$^{2}$
Perimeter of a Triangle: $P$ = $a$ + $b$ + $c$
Therefore:
$P$ = 18 ft + 9 ft + 10 ft
$P$ = 37 ft