scale factor = 1/2
Step-by-step explanation:
pentagon ABCDE:
Distance of BA = 6 squares = 6
Distance of BC = 3 squares = 3
Distance of AE = 3 squares = 3
Distance of ED = 9 squares = 9
Pentagon A'B'C'D'
Distance of B'A' = 2 squares = 2
Distance of B'C' = 1 squares = 1
Distance of A'E' = 1 square = 1
Distance of E'D' = 3 squares = 3
Scale factor is the ratio of new image/ old image
picking any of the distances with the corresponding distance in the other image
for B'A' to BA = 3/6 = 1/2
This is because, the shape has reduced.
scale factor = 1/2