If XY is a mid segment of the trapezoid, what is its length?(Only enter the number, so if XY=22, just enter 22)

Answer:
26
Step-by-step explanation:
In a trapezoid, the length of a mid-segment is average of the two bases.
In this case, the bases are 12 and 40, the average of which is (40 + 12)/2 = 52/2 = 26