Question

im not smart at all and i need my grade up in math or im screwed if i can just get a direct answer thatd be poggers. anyways: chris is mailing his friend a poster that has been rolled up in a long tube. he has a box that measures 20 inches by 8 inches by 4 inches. what is the maximum length the rolled poster can be?

Answer 1

$l=\sqrt[]{20^2+8^2+4^2}$$l=\sqrt[]{400+64+16}$$l=\sqrt[]{480}$$l=21.9089\text{ inches}$

the maximum length the rolled poster can be is 21.9089 inches