in order to figure out if they were simular or not the ratio between the two lengths should be equal to the ratio between their widths.
assume that w is the ratio between the two widths and L is the ration between the two lengths.
w=48/32= 3/2
L=24/16= 3/2
since w=L therefore they are similar.
and the ratio between the larger one to the smaller one is 3:2
so the answer is D) yes, 3:2