The solution to this equation is x=4.6 because 19.32/4.2=4.6
The answer is 7
13-6 is 7
It looks like the first and the third are diagrams of similar triangles, and the third needs another right angle marker at E to be persuasive. So I'll go with
First diagram
We're given a congruent angle pair and we have another from vertical angles, so AA, similar triangles.
The angle sum of triangle is 180 degrees, so 180-125 = 55
6-4/2x=y
Hope this helps and pls tell me if im right
