Answer
Area of the Triangle = $A$ = 139.15 cm$^{2}$
Perimeter of the Triangle = $P$ = 58.9 cm
Work Step by Step
Area of a Triangle: $A$ = $\frac{1}{2}$$b$$h$
Therefore:
$A$ =$\frac{1}{2}$(25.3 cm)(11 cm)
$A$ = 139.15 cm$^{2}$
Perimeter of a Triangle: $P$ = $a$ + $b$ + $c$
Therefore:
$P$ = 25.3 cm + 18 cm + 15.6 cm
$P$ = 58.9 cm
