Question

Figure F is a scale image of figure E as shown. Enter the scale factor applied to figure E to produce figure F.

Answer 1

Explanation:

that means that there is one scale factor for all sides of the triangles.

so,

2 × f = 14

f = 14/2 = 7

and to control, this has to work also for the other given side :

3 × 7 = 21

correct.

so, the scaling factor to get from E to F is 7.