Question

If you're reproducing a 4 cm x 4 cm picture on a 3 m x 3 m wall, what ratio should you use?

Answer 1

Answer:

So you can divide by 2 for the picture. 4/2 = 2

So you can get 2 x 2 picture. The ratio would be 1

if you have a variable it would always be

x by x.

If you want to cover whole wall multiply by 4/3 on the 4 x 4 picture