Answer:
none
Step-by-step explanation:
i dont know
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.
Answer:
3 is your answer
Step-by-step explanation:
-7-(-10)= 3