Answer:
Sum of the angles of a triangle =180
Since the: ECD ~IGH 
so: e=i..d=
Explanation:
Since the two triangles are equal, then:
 E=I=58 ...,D=H=65 ...,C=G=X
 Ec = ig. Ed = ih. Cd = gh
 Since the sum of the angles of a triangle is 180
 Van:
 180=I+H+G
 180= 58 +65 +X
 X= 180-58-65
 X= 57
 Since the :
 Cd = gh
 13=X-Y
 Y=57 -13
 Y=44