Answer:
[tex]\begin{gathered} (a)\rightarrow\frac{S_1}{S_2}=0.48\rightarrow48\text{ \%} \\ \\ (b)\rightarrow\frac{S_2}{S_1}=2.1\rightarrow210\text{ \%} \end{gathered}[/tex]Explanation: We are given two figures that are essentially similar, but one is scaled up, we need to find out the scale factor.
Two same given sides are:
[tex]\begin{gathered} S_1=1.60in \\ S_2=3.36in \end{gathered}[/tex](a) Drawing 1 to Drawing 2:
[tex]\frac{S_1}{S_2}=\frac{1.60}{3.36}\approx0.48[/tex]In percent would be:
[tex]0.48\times100=48\text{ \%}[/tex](b) Drawing 2 to Drawing 1:
[tex]\frac{S_2}{S_1}=\frac{3.36}{1.60}=2.1[/tex]In Percent would be:
[tex]2.1\times100=210\text{ \%}[/tex]