Question

Figure WXYZ ~ figure WꞌXꞌYꞌZꞌ.

What is the value of a?

https://static.k12.com/calms_media/media/1574000_1574500/1574338/1/6a9c3ac4de3fd4faee45bb962a67c8556c39e1de/MS_IMC-141231-111310.jpg

I think it's 4.

Answer 1

so bc these rectangles are similare what will be corresponding side to side ,,a´ ?

Answer 2

to y´x´ corresponding yx so this mean that to side ,,a´ corresponding the side with length 16 - yes ?

Answer 3

and to side xw corresponding side x´w´

writing the proportionalitie of similar sides you get

16 8
--- = ---
a 2

from this how many will be ,,a´ ?