Answer:
[tex]\frac{4}{3}[/tex]
Step-by-step explanation:
Shape A is similar to shape B, but shape B is tilted in a different direction. If you tilt B so that it is in the same direction as A, they will look more similar. The ratios of A's sides are 20:24:12:28
The ratios of B's sides are 15:18:9:21
To get from B to A, you have to multiply all the sides by [tex]\frac{4}{3}[/tex], making [tex]\frac{4}{3}[/tex] the scale factor.
