The area of a parallelogram is 128sq m.Then the area of a triangle formed by its diagonal is ----------?
Choose the correct choice from the following
A) 128 m  B) 64 m  C) 64 m ^ 2  D) 128 m ^ 2  E) none

Rationale: b * h / 2 = 128 / 2 = 64 m . ans : ( b )
Answer: B