Answer:
∡IEF=∡SRV
∡HIE=∡TSR
∡GHI=∡UTS
∡FGH=∡VUT
∡EFG=∡RVU
Explanation:
I didn't know how you needed them labeled so hope this helps.
If not try just putting hoops
from each side over the letter in the corner on the inside. Then each one will get one more than the other.
I.E. u and g get 1, f and v get 2, e and r get 3, i and s get 4, and h and t get 5.