
Respuesta :
Answer:
15 foot long banner
Step-by-step explanation:
use the Pythagorean theorem
12^2+9^2=banner length^2
144+81=banner length^2
banner length=15 feet
Answer:
15 foot long banner
Step-by-step explanation:
use the Pythagorean theorem
12^2+9^2=banner length^2
144+81=banner length^2
banner length=15 feet