I just need #1 plzzzz if you can do #2 and #3 as well I also need the work!! 20 points

I Just Need 1 Plzzzz If You Can Do 2 And 3 As Well I Also Need The Work 20 Points class=

Answer :

#1 would be 12 cm as the actual length of the thermos! This is because the scale given is 1:3 right? if you find what number 1 is multiplied by to get 3, you will obviously have 3. then, the given length of the thermos would be multiplied by 3, so it would be 3 x 4, which would be 12!

-8th grader