Find the area of the quadrilateral of one of its diagonals is 10 cm and its off sets 7 cm and 3 cm?  Options.
A) 50 cm 2 B) 100 cm 2 C) 150 cm 2 D) 200 cm 2 E) 250 cm 2

Rationale: "1 / 2 * 10 ( 7 + 3 ) = 50 cm 2 answer : a"
Answer: A