Your friend is standing on a platform that's 9 feet tall. You are standing 12 feet away from the platform. You and your friend each want to hold one end of a banner. How long does the banner have to be?

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

19.side- angle- side

20. angle- side- angle

step-by-step explanation:

i get you, what you should do is think of the positive things that would come out of it. it will make yours parents proud and raise your grade. you should always try and if you can't focus tell the teacher.