Answer:
[tex]\boxed{\boxed{\sf171~square~feet}}[/tex]
Solution Steps:
______________________________
1.) Fill in the formula with the information given:
- Formula = [tex]\sf{L}[/tex] × [tex]\sf{W}[/tex]
- Filled in Formula = [tex]19[/tex] × [tex]9[/tex]
2.) Multiply:
- [tex]19[/tex] × [tex]9=171[/tex]
So your answer is [tex]\bold{171^2}[/tex].
______________________________