The perimeter of the rectangle is 42 inches.
A rectangle is a four-sided object. The sum of angles in a rectangle is 360 degrees.
The formula that can be used to determine the perimeter of a rectangle is: 2h + 2w
Where:
2h + 2w = (2 x 9) + (2 x 12)
= 18 + 24
= 42 inches
To learn more about the perimeter of a rectangle, please check: brainly.com/question/18793958