Yes; the corresponding angles are congruent. You can see that that triangle EFGH is a dilation from triangle ABCD. To be exact, if you multiply each side on triangle ABCD by 2.5, you get triangle EFGH. If it is a dilation, this means that the angles will stay the same.
For the first one, it would be 5/3 and 19/3
the second one would be 40
I think it is 200. I apologize if that is not the answer.