Using the area provided, solve for the missing measurement, in centimeters. Enter your answer (number only), rounded to the nearest tenth.

20

step-by-step explanation:

i dont know i just need points

i got 10.28 but that rounds up to 10.3

"image"

step-by-step explanation:

in most of these problems, the notation is that the point with a "prime" is the image of the point without. that is, b' is the image of b.

here, there is no dilation or reflection. there is simply translation (with no direction shown). which figure you call the "preimage" and which one you call the "image" is up to you. as a matter of convention, the naming is as described above.