Answer:

Explanation:
Area of larger rectangle:
= Length * Width
= 18 * 12
= 216 in.²
Area of smaller triangle:
Length = 12 - 2 - 2 = 8 in.
Width = 18 - 2 - 2 = 14 in.
= Length * Width
= 8 * 14
= 112 in.²
Area of shaded region:
= 216 - 112
= 104 in.²
![\rule[225]{225}{2}](https://img.qammunity.org/2022/formulas/mathematics/high-school/3icqlwn6du2l5ygbr7z2lp6sjjralcpq09.png)
Hope this helped!
~AH1807