Theory:

The Perimeter of a Trapezium: The Perimeter is the sum of all side lengths
Perimeter = \(a+b+c+d\)
 
perimeter.png
Midsegment of Trapezium:
  • The Segment, connecting midpoints of lateral sides of trapezium, is called midsegment of Trapezium.
  • Midsegment of a trapezium is parallel to bases and is equal to half of their sum.
1.JPG
 
EFBC,EFAD;EF=BC+AD2.
 
Trapezium has only one midsegment.