Question

the pairs of polygons below are similar. give the scale factor of figure a to figurea 10:18:15 B 6:4:7.2

Answer 1

$\begin{gathered} 18\rightarrow7.2 \\ 18k=7.2 \\ k=\frac{7.2}{18} \\ k=\frac{2}{5}=0.4 \end{gathered}$