Help pls help pls

Measure of the side, x = 5.25 units

Step-by-step explanation:

Figure B is a scale image of figure A.

That means figure B is an image and figure A is a pre-image.

Scale factor for the dilation from figure A to figure B = 1.75

Scale factor =

             1.75 =

                  x = 1.75 × 3

                  x = 5.25 units

Therefore, measure of the side figure B is 5.25 units.