The order of the letters is very important
We have triangle IHJ congruent to triangle UVT
The letters I and U are the first letters of the sequences IHJ and UVT. So these letters pair up and angle I = angle U (due to the fact that the triangles are congruent, and by CPCTC)
The diagram shows angle I = 36 degrees, therefore, angle U is also 36 degrees
Answer: 36 degrees
