Answer:
The length of the new image is 3 cm
Step-by-step explanation:
we know that
To find the length of the new image, multiply the length of the original image by the scale factor
Let
A'B'-----> the length of the new image
z ----> the scale factor
we have that
AB=1.5 cm
z=2
A'B'=z*AB
A'B'=2*1.5=3 cm