- A12
- B7
- C6
- D5
Step-by-Step Solution
Diagonals of a parallelogram bisect each other, so O is the midpoint of AC. Hence OC = AO = 6 cm.
Answer: C) 6
Don't just memorise the answer — build a daily practice habit.
Practice 5 Similar Questions Free →All Properties of Parallelograms practice questions