Answer:
Option D 14 units.
Step-by-step explanation:
In the given diagram a trapezoid has been given with two bases AB = 7 units and CD = 21 units
We have to find the median of the trapezoid. We know that median of a trapezoid is half of the sum of bases.
So median of ABCD = [tex]\frac{1}{2}[/tex] (AB + CD)
= [tex]\frac{1}{2}[/tex] ( 7 + 21 )
= [tex]\frac{1}{2}[/tex] ( 28 )
= 14 units.
Option D 14 units is the answer.
