In a parallelogram, the length of one diagonal and the perpendicular dropped on that diagonal are 30 and 20 metres respectively. Find its area	Choose the correct choice from the following choices: A) 600 m 2 B) 540 m 2 C) 680 m 2 D) 574 m 2 E) none of these

Rationale: in a parallelogram . area = diagonal × length of perpendicular on it . = 30 × 20 = 600 m 2 answer a
Answer: A