Given:
The figure of a trapezoid.
Length of mid-segment = 5.5
Height of the trapezoid = 
To find:
The area of the trapezoid.
Solution:
The area of a trapezoid is:
...(i)

Where, a,b are bases and h is the vertical height.
We know that
is the length of the mid-segment.
Putting M=5.5 and
in (i), we get


Therefore, the area of the trapezoid is
units squared.