In a trapezium ABCD, DC || AB, AB = 12 cm and DC = 7.2 cm. What is the length of the line segment joining the midpoints of its diagonals?

Answer: Option D

Solution

Answer: Option D

Solution:

$$\text{MN}=\frac{12-7.5}{2}=\frac{4.8}{2}=2.4$$