Answer
$A$ = 9 mi$^{2}$
$P$ = 12 mi
Work Step by Step
Since the length and width of the preserve are the same it is a square.
Area of a square: $A$ = $s$$^{2}$
$A$ = (3 mi) $^{2}$
$A$ = 9 mi$^{2}$
Perimeter of a square: $P$ = 4$s$
$P$ = 4(3 mi)
$P$ = 12 mi
![](https://gradesaver.s3.amazonaws.com/uploads/solution/daeed0b8-7c05-4cfa-8365-a25d62257043/steps_image/small_1474071153.png?X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Credential=AKIAJVAXHCSURVZEX5QQ%2F20240727%2Fus-east-1%2Fs3%2Faws4_request&X-Amz-Date=20240727T022032Z&X-Amz-Expires=900&X-Amz-SignedHeaders=host&X-Amz-Signature=e6e4742de4636806cb2767b7dd9c7be8b56932c79b18735cb15e655724a72004)