Hey there,
I'm very sorry, My (wifi) was messing up. But to continue your answer.
Question #1
The correct answer to the first question would be (24.1) because we add up (7.9 + 10 + 6.2) and that is how I got 24.1
Question #2
Your correct answer for the second congruent shape would be 52° because as we do 90°-38° that would give us 52°
Hope this helps. (once again, my internet messed up, so I couldn't give you the long and nice answer like I did before, I hope you understand)
~Jurgen