Determine the length of each segment. (hint: Draw the separate triangles to get CF and DE)

12.) AG=
13.) FC=

15.) AE=

14.) ED=

Can someone help me

The first one, i believe, would be correct. all the others have one thing in common, and that's that they have repeating numbers. in the second one, x and y have repeating 6's and 3's, and in the third, x and y have repeating 6's as well. in the last one, there are repeating 3's. the first one has no repeating numbers.