Answer:
CD = 10 units
Step-by-step explanation:
Coordinates of the given points are A(2, 14), B(2, 3), C(4, 2) and D(14, 2).
Distance between the two points
and
is given by the formula,
d = 
Distance between the two points C(4, 2) and D(14, 2) will be,
CD = 
= 
= 10 units
Therefore, distance between C and D is 10 units.